a) Price with attachment for two Wires and top removable for cleaning the glasses... (b) Ditto, with two glass tubes for showing the leakage caused by a radio-active gas... (c) Ditto, with transparent scale, lecturer's pattern, for projection of image of gold leaf and scale by means of a lantern... ... 5/- each. 5/6 each. 7/6 each. 14 COMMERCIAL STREET, LEEDS. Negretti & Zambra's SELF-RECORDING Meteorological The STANDARD RECORDING (Halliwell's Patent), In Improved Copper Case. Full particulars on application to the Sole Makers NEGRETTI & ZAMBRA, 38 Holborn Viaduct, E. C., -London. Branches: 45 CORNHILL, E.C. The Courses of Study in the Faculty leading to the ordinary degree of Bachelor of Engineering extend over at least three years. They are so arranged as to afford a general scientific training for those who intend, with or without graduating, to become engineers or naval architects, or to enter any allied profession. Students who do not proceed to a University degree may take a course of not less than two years leading to a Certificate in Engineering. The Honours Course enables students to specialise in some branch of the profession, and opportunities are afforded for post-graduate work and research. The special Prospectus of the Faculty may be obtained on application to the undersigned. P. HEBBLETHWAITE, M.A., Registrar. THE DAVY-FARADAY RESEARCH LABORATORY OF THE ROYAL INSTITUTION. DIRECTOR: Professor Sir JAMES DEWAR, M.A., LL.D., D.Sc., F. R.S. SUPERINTENDENT OF THE LABORATORY: DR. ALEXANDER SCOTT, M.A., D.Sc., F.R.S. This Laboratory was founded by Dr. Ludwig Mond, F.R.S., as a Memorial of Davy and Faraday, for the purpose of promoting, by original research, the development and extension of Chemical and Physical Science. Michaelmas Term.-Monday, October 4, to Saturday, December 11. Full Information and Forms of Application can be had from the ASSISTANT SECRETARY, Royal Institution, Albemarle Street, W. To prevent delay Candidates ought to send in their applications for admission during the course of the Term preceding that in which they wish to enter. COUNTY COUNCIL OF THE WEST RIDING OF YORKSHIRE. EDUCATION DEPARTMENT. ELLAND SECONDARY SCHOOL (GIRLS). The West Riding Education Committee will require for the above school for September next, the services of an ASSISTANT MISTRESS to take chiefly Science, Mathematics and Physical Geography (ability to teach Domestic Subjects will be an additional qualification). Commencing salary, £120 per annum. Forms of application may be obtained from the Education Department (Secondary Branch), County Hall, Wakefield, and should be returned, with copies of not more than three recent testimonials, not later than July 19 next. Canvassing will be a disqualification. The College is situated close to stations on the G.E.R., District Railway and L.T. and Southend Railway, and is approached from The Royal Exchange in 15 minutes by motor omnibus. PASS AND HONOURS COURSES in the FACULTIES OF ARTS, SCIENCE AND ENGINEERING. Latin, Greek, English, French, German, English History, Logic, Mathematics, Physics, Chemistry, Botany, Geology. CIVIL AND MECHANICAL ENGINEERING. ELECTRICAL ENGINEERING. Courses in the above subjects are likewise arranged for Evening Students. PREPARATORY AND MATRICULATION CLASSES. MODERATE FEES. Valuable Scholarships are offered annually by the Worshipful Company of Drapers. Calendar post free on application to the REGISTRAR, or J. L. S. HATTON, M.A., Principal. SOUTH-WESTERN POLYTECHNIC INSTITUTE, MANRESA ROAD, CHELSEA, S.W. Day Courses in preparation for London University degrees in Mechanical and Electrical Engineering, in Chemistry, Physics and Natural Science. Session Fee, £15. Similar Evening Courses. Session Fee, £2. Technical Day Courses arranged to extend over 3 years and prepare for Engineering, Electrical, Chemical and Metallurgical professions. Mathematics *W. H. ECCLES, D.Sc. ; *J. LISTER, A.R.C.S. *S. SKINNER, M.A.; *L. LoWNDS, B.Sc., Ph.D., Physics and F. W. JORDAN, B.Sc. Chemistry... Botany Geology Zoology Engineering Electrical Engineering *J. B. COLEMAN, A. R.C.S.; *J. C. Crocker, M.A. D.Sc.; *F. H. Lowe, M.Sc., & W. E. OAKDEn. *H. B. LACEY; S. E. CHANDLER, D.Sc., and *H. J. JEFFERY, A.R.C.S. *A. J. MASLEN, F.L.S. *H. B. FANTHAM, D.Sc., A.R.C.S., F.Z.S. *W. W. F. PULLEN, Wh.Sc.; SMITH and H. AUGHTIE. *A. MACKLOW *A. J. MAKOWER, M.A.; B. H. MORPHY and Ú. A. OSCHWALD, B.A. * Recognised Teacher of the University of London. Full prospectus from the SECRETARY, post free, 4d.; at the Office, price id. SIDNEY SKINNER, M.A., Principal. BATTERSEA POLYTECHNIC. Full Day and Evening Courses, extending over three or more years, for *Physics BISPHAM, M.A., B.Sc. B.Sc.; J. W. J. WILSON, M.Sc.; J. L. WHITE, D.Sc. W. E. M. CURNOCK, M.Sc., B.Eng.; J. B. SHAW, A. R.C.S., Wh. Ex.; R. W. BAILEY, Wh. Sc. A. W. ASHTON, M.Sc.; A. T. DOVER. Miss L. J. CLARKE, B.Sc., F.L.S. A. WADE, B.Sc., A.R.C S. J. H. JOHNSTON, M.Sc., F.I.C. *Students attending in these subjects may register as internal students of London University. Classes are provided in Latin, French, German, Spanish, Italian; in Commercial Subjects and Commercial Law; in Sanitary Science, Bacteriological Chemistry, &c. There are completely equipped Departments in Domestic Economy, Art and Crafts, and Music. Scholarships to the value of £310 are awarded annually. Special facilities are afforded for research work. For prospectus and further particulars apply to the SECRETARY. BIRKBECK COLLEGE, BREAMS BUILDINGS, CHANCERY LANE, E.C. DAY AND EVENING CLASSES. Courses of Study under Recognised Teachers of the University of London for Degrees in Science, Arts and Economics. JA. MCKENZIE, Ph.D., D.Sc., M.A.; H. WREN, Ph.D., M.A., B.Sc.; G. W. CLOUGH, B.Sc. A. GRIFFITHS, D.Sc.; D. OWEN, B.A., B.Sc.; B. W. CLACK, B.Sc. THE JOURNAL OF ECONOMIC BIOLOGY. Edited by D. T. GWYNNE-VAUGHAN, M.A.; E. M. CUTTING, WALter e. collinge, M.Sc., F.L.S., F.E.S., M.A. H. W. UNTHANK, B.A., B.Sc. J. W. EVANS, D.Sc.; A. M. DAVIES, D.Sc. Mathematics... E. H. SMART, M.A.; C. V. COATES, M.A. F. A. WRIGHT, M.A.; G. S. ROBERTSON, M.A. Eng. Literature J. H. LOBBAN, M.A. Language J. S. WESTLAKE, M.A. French ... German Geography History Logic Economics V. E. KASTNER, B.ès. L.; J. S. WESTLAKE, M.A. E. L. MILNER-BARRY, M.A. L. W. LYDE, M.A. T. SECCOMBE, M.A. JG. ARMITAGE-SMITH, M.A., D.Lit. British Constitution. G. H. J. HURST, M.A. Assaying. Metallurgy. Mining. G. PATCHIN, A.R.S.M. Prospectus free, Calendar 3d. (post free 5d.), from the Secretary. BIRKBECK COLLEGE. HEAD OF BOTANY DEPARTMENT. This post is vacant owing to the appointment of Mr. Gwynne Vaughan as Professor at Belfast University. The Council invite applications. Commencing salary, £300. Candidates should apply as soon as possible, stating age, academic distinctions, experience and criginal work, and should enclose testimonials to the PRINCIPAL, Birkbeck College, Bream's Buildings, London, E.C. The Agent-General for Victoria, Australia, is authorised to receive at his offices at Melbourne Place, Strand, London, W.C., applications for appointment to the Chair of Engineering at the Melbourne University, which is now vacant. Salary, £1000 per annum. THE CLINICAL SCHOOL, UNIVERSITY OF LIVERPOOL. Clinical teaching in the University is carried on in four General Hospitals and five Special Hospitals. The Hospitals contain a total of 1050 beds; 800 of these are in the General Hospitals, 250 in the Special Hospitals. Twenty-six Resident Appointments, fourteen carrying salaries from £60 to £100 per annum, are open to students of the School. Further information may be obtained on application to the Secretary, Professor ABRAM, 74 Rodney St., Liverpool. GUY'S HOSPITAL. ENTRANCE SCHOLARSHIPS, to be competed for in September, 1909. TWO OPEN SCHOLARSHIPS in ARTS, one of the value of £100, open to Candidates under 20 years of age, and one of £50, open to Candidates under 25 years of age. TWO OPEN SCHOLARSHIPS in SCIENCE, one of the value of £150, and another of £60, open to Candidates under 25 years of age. ONE OPEN SCHOLARSHIP for University Students who have com. pleted their Study of Anatomy and Physiology, of the value of £50. Full particulars may be obtained on application to the DEAN, Guy's Hospital, London Bridge, S. E. UNIVERSITY OF MANCHESTER AND MANCHESTER ROYAL INFIRMARY. ENTRANCE MEDICAL SCHOLARSHIPS. Two Scholarships are offered and will be awarded to candidates who give evidence of a high standard of proficiency in Arts or Science respectively. Each Scholarship is of the value of £100, and the successful candidates will be required to enter for the full Medical Curriculum in the University and the Infirmary. Applications should be sent on or before July 15 to the REGISTRAR, from whom further particulars may be obtained. with the co-operation of Prof. A. H. REGINALD BULLER, D.Sc., Ph.D.; Prof. PERCY GROOM, M.A. (Cantab. & Oxon.), D.Sc., F.L.S.; and A. E. SHIPLEY, M.A., Hon. D.Sc., F.R.S. Vol. IV., Parts 1 and 2, now ready. Descriptions and Life-histories of Two New Parasites of the Black Currant-Mite. (With Plts. i. and ii. and 5 Text-figs.) By ADELAIDE M. TAYLOR-Descriptions of Two New Species of Collembola. (With Plt. iii.) By WALTER E. COLLINGE, M.Sc., F.L.S., and JOHN W. SHOEBOTHAM, N.D.A.-Observations on the Life-history and Habits of Thereva nobilitata, Fabr., and other species. (With Plt. iv.) By WALTER E. COLLINGE, M.Sc., F.L.S.-Note re Rat Parasites. By A. E. SHIPLEY, M.A., F.R.S.-A Contribution to our Knowledge of the British Thysanoptera, with Notes on Injurious Species. By RICHARD S. BAGNALL, F.E.S.-A Stem Boring Beetle attacking Cotton in the Sudan. (With Plt. v.) By HAROLD H. KING.-Description of a New Genus of Collembola of the Family Neelidae, Folsom. (With Plt. vi.) By WALTER E. COLLINGE, M.Sc., F. L.S., and JOHN W. SHOEBOTHAM.Reviews. Current Literature. ENGINEERING AND CHEMISTRY. CITY AND GUILDS OF LONDON INSTITUTE. SESSION 1909-1910. The COURSES of INSTRUCTION at the Institute's Central Technical College (Exhibition Road) are for Students not under 16 years of age; those at the Institute's Technical College, Finsbury, for Students not under 14 years of age. The ENTRANCE EXAMINATIONS to both Colleges are held in September, and the Sessions commence in October. Particulars of the Entrance Examinations, Scholarships, Fees, and Courses of Study, may be obtained from the respective Colleges, or from the Head Office of the Institute, Gresham College, Basinghall Street, E.C. OITY AND GUILDS CENTRAL TECHNICAL COLLEGE. A College for Higher Technical Instruction for Day Students not under 16 preparing to become Civil, Mechanical, or Electrical Engineers, Chemical and other Manufacturers, and Teachers. The College is a "School of the University of London," and also forms the Engineering Section of the Imperial College of Science and Technology. Fee for a full Associateship Course, £36 per Session. M.Inst.M.E. R. MELDOLA, F.R.S., F.I.C. JOHN WATNEY, Hon. Secretary. City and Guilds of London Institute, AËRIAL NAVIGATION. Mr. Eric Stuart BRUCE, M.A. Oxon., F. R. Met. Scc., Member of Council and late Honorary Secretary Aeronautical Society of Great Britain, VicePresident Aerial League of the British Empire, Membre d'Honneur Aéro Club of France, can accept engagements for his eminently suc cessful lecture, "AIRSHIPS, BALLOONS, AND FLYING MACHINES," profusely illustrated by elaborate experiments and working models, also for shorter demonstrations at Soirées, Exhibitions, &c. Now booking for Winter Season. For prospectus, terms, &c., address E. S. BRUCE, Esq., Airth, Sunningdale, Ascot. HARTLEY UNIVERSITY COLLEGE, Principal-S. W. RICHARDSON, D.Sc. (Lond.), M. A. (Camb.). PRIFYSGOL D. KIDDLE. Registrar. CYMRU. UNIVERSITY OF WALES. TWO PRICE DAVIES SCHOLARSHIPS to the University of Wales, each of the value of £30 per annum, and tenable for three years at either the University College of Wales, Aberystwyth, or the University College of North Wales, Bangor, will be awarded in September, 1909. Particulars may be obtained from the REGISTRAR, The University Registry, Cathays Park, Cardiff. COUNTY BOROUGH of SUNDERLAND. THE TECHNICAL COLLEGE. Principal-V. A. MUNDELLA, M.A., B.Sc., M.I.E.E. Applications are invited for the vacant position of ASSISTANT LECTURER and DEMONSTRATOR in the CHEMISTRY DEPART. MENT, salary beginning at £120 per annum. Applications must be returned by July 13 to the undersigned, from whom further details of the appointment may be obtained. MORLEY T. W. BRYERS, Secretary to the Education Committee. COLLEGE (For Working Men and Women), WATERLOO ROAD, S.E. PHYSIOLOGY AND PHYSICS. TEACHERS are wanted for Evening Classes in Elementary Physiology and Hygiene, and in Sound, Light and Heat. Apply VICE-PRINCIPAL. PORTSMOUTH EDUCATION COMMITTEE. (HIGHER EDUCATION.) GIRLS' SECONDARY SCHOOL. APPLICATIONS ARE INVITED FOR THE POST OF SENIOR SCIENCE MISTRESS. Graduate, with good experience, to teach Physics, Chemistry, Botany to London Matriculation and Senior Oxford Standard. Ability to take a little Geography on modern lines a recommendation, but not an essential. Salary, 135, increasing after approved service to £150 by £5 annual increments. Particulars should be given in the following order, viz., Name, Address, Age, Training, Qualifications, Previous Experience, Present Appointment. Applications, on paper of foolscap size, accompanied by copies only of three recent testimonials, should be received not later than the 12th inst., addressed to the SECRETARY, at the Municipal College, Portsmouth. SCIENCE MASTERS required in Sep tember, (a) for first-grade Public School, good degree and experience essential. Salary from £160; if able to take highest Mathematics not less than £200, increasing. D 19289. (b) Graduate with experience to teach Science, with Mathematics or French, in Public Secondary School. £160 or £170, non. res., increasing. No. D 20360. (c) For Endowed School, to teach Chemistry and Botany, 160, non. res. D 20260. (d) Experienced Science Graduate to teach Botany, Chemistry and Physics, and Mathematics. Dual School. £140, non. res., and extras. No. D 20242. (e) To teach Mathematics and Science in Proprietary School; good Degree and experience essential. Salary up to £150, res. D 20063. MATHEMATICAL MASTERS required in September, (a) for Public Secondary School; Mathematical Honour Degree and experience necessary. Non-res., 160. D 19330. (b) For High-class Preparatory School; res., up to £130. D 19850. (c) For Public School, Oxford or Cambridge Mathematical Honour Degree and experience. Res.. 130 to £150. D 19957. (d) Oxford or Cambridge Mathematical Honour man for Public Secondary School. Res., up to £140, increasing. D 19879. For further details of these and other vacancies apply, with particulars of qualifications, to Messrs. TRUMAN & KNIGHTLEY, Ltd., Educational Agents, Sheffield House, 158-162 Oxford Street, London, W. THE UNIVERSITY OF SHEFFIELD. APPOINTMENT OF ASSISTANT LECTURER AND DEMONSTRATOR IN BOTANY. The Council are about to appoint an ASSISTANT LECTURER and DEMONSTRATOR in BOTANY. Applications should be made to the undersigned, from whom further particulars may be obtained. W. M. GIBBONS, Registrar. THE UNIVERSITY OF SHEFFIELD. APPOINTMENT OF ASSISTANT LECTURER IN MATHEMATICS. The Council are about to appoint an ASSISTANT LECTURER in MATHEMATICS. Salary, £200 per annum. Applications must be sent in by July 17 to the undersigned, from whom further particulars may be obtained. W. M. GIBBONS, Registrar. Wanted, a Director of Education for the Gold Coast Colony. Salary, £600 a year, with a duty allowance of £120 a year, payable while the Director is on duty in the Colony. Free passage provided, also free quarters partially furnished. Leave of absence and pension in accordance with the ordinary regulations of the Colony. Good general education and experience of educational work required. Candidate must not be more than 40.-Applications should be sent in covers marked "C. A." to THE SECRETARY, Board of Education, Whitehall, S. W. Greece. Required, a Master to teach the English language and all branches concerning the study of Navigation. Salary, 14 a month, non-res. Good school. Address -GRIFFITHS, SMITH, POWELL AND SMITH, Tutorial Agents (Estd. 1833), 34 Bedford St., Strand. To Science Masters.-Required in September, (1) Graduate to teach Botany, Chemistry, and Physics from an agricultural point of view, and Mathematics. Salary, 130 to £140, non-resident. (2) Graduate for Chemistry and Physics. Salary, £130, non-resident. Grammar School. Address-GRIFFITHS, SMITH, POWELL AND SMITH, Tutorial Agents (Estd. 1833), 34 Bedford St., Strand. WANTED: RADIUM.-Armbrecht, Nelson & Co., 71 and 73 Duke Street, Grosvenor Square, London, W. MOSQUITOES, GNATS and FLIES will not attack if a little of Ambrecht's Pyrethrum is put on the skin. It protects for about 12 hours, and also cures stings of any insects-wasps and bees included. Price 25. 9d. post free U.K.; Germany, Holland and English Colonies 15., France and Italy 1s. 6d., extra.-Armbrecht, Nelson & Co., 71 and 73 Duke Street, Grosvenor Square, London, W. Write for the LATEST EDITION of our ILLUSTRATED CATALOGUE. Ready in a Few Days. |