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zones, these being, in ascending order, the Nairn, Alves,
and Rosebrae beds. Reference was made to the affinity of Royal Dublin Society, March 21.-Sir Howard Grubb,
the Rosebrae fish-fauna with that of Dura Den, the yellow F.R.S., in the chair.-(a) The temperature of healthy dairy
sandstones of which locality constitute the highest member cattle, (b) the temperature of tuberculous cattle, not
of the Upper Old Red of Fifeshire. Dr. Traquair specially clinically affected : Prof. G. H. Wooldridge. The author
desired to acknowledge his great indebtedness to Mr. W. made 520 observations on 63 healthy dairy cattle which
Taylor, of Lhanbryde, without whose assistance in furnishwere subsequently submitted to the tuberculin test, and
ing material the paper could not have been prepared.—The failing to react were considered free from the disease.
constitution of complex salts, i., derivatives of the sesquiHis conclusions are that the temperature may vary between
oxides : A. T. Cameron. Retger's method of investi100°4 F. and 100°8 F., with an average mean temperature of 10104 F. Feeding Feeding 'caused an average rise of 0°.3 F. gating isomorphous mixtures was applied to the blue
chromoxalates of ammonium and potassium, and showed above the temperature of the same cattle at the same time on other days, but not feeding. In the afternoon,
that they had no definite composition, there being, there
fore, no conclusive reason for doubling the formulæ of between 4 and 5 o'clock, the average temperature was
these and similar compounds. The striking analogy 0°5 higher than at 8 a.m. Pregnant cows had an average
between the so-called double fluorides, chlorides, cyanides, temperature 0°.3 F. higher than the average of the other
&c., and the complex derivatives of dibasic acids was cattle in the same building. Tuberculous cattle numbering
pointed out. It was shown that to almost all such com74, apparently perfectly healthy, but subsequently reacting to tuberculin, were the subjects of 505 observations. These pounds, whether derived from monobasic or dibasic acids,
simple constitutions can be assigned by supposing the animals had a much wider range of variations. The
hydroxyl radicals of the metallic hydroxide to be replaced average was 101°:7 F. The lowest observed was 100°-4 F. and the highest 104°:3 F. The widest range of an in
by complex groups.-Theorems relating to a generalisation dividual was from 100°.7 F. to 104°3 F., with an average
of Bessel's function, ii. : Rev. F. H. Jackson. of 102°:2 F. (temperature taken 15 times).
Out of 137
March 6.-Lord M'Laren in the chair.--A study of three apparently healthy dairy cattle, 74 (54 per cent.) reacted to vegetarian diets : Drs. Noël Paton and J. C. Dunlop. tuberculin, thus emphasising the advisability of using that Of the three diets described, one was a totally insufficient agent in attempts to obtain a dairy free from tuberculosis.
diet of bananas, a second was a fairly typical vegetarian On the petrological examination of macadam : Prof. J.
diet showing the difficulty of avoiding an excess of sugary Joly, F.R.S. Various specimens of macadam used on food, and the third was the far from economical diet of a Scottish roads have been examined. The general results vegetarian glutton. These were compared with the diets of the investigation are to elucidate the characteristics of of the labouring classes in cities as illustrated by the these macadams, as well as apparent abnormalities of
author's own investigations in Edinburgh, and those of behaviour, and to demonstrate the value of petrological Rowntree, Alswater, and Lumsden respectively in York, methods in such cases. On the construction of fume- New York, and Dublin, and as regards rural districts by chambers with effective ventilation : Prof. W. N. Hartley,
Wilson Fox's report. It was shown that these normal F.R.S. The results of a series of experiments on ventil- diets more nearly approached the physiological standard ation and of practical experience with fume-chambers have
than the vegetarian diets studied.—A further contribution shown the conditions which are necessary for the removal
to the fresh-water plankton of the Scottish lochs : W. and of noxious fumes from a chemical laboratory with the G. S. West. The thirty-six lochs studied were in the greatest efficiency and the least possible trouble and
north-west Highlands. There
abundance of expense. Measurements were made daily over a period of
Desmids, a fact attributed to the geological character of six months of the gas burnt, the air extracted, the differ
the country. The Protococcoideæ were not abundant, in ence between inside and outside temperatures, the baro
marked contrast to what occurs in Continental Europe. metric pressure, the direction of the wind and its strength. Diatoms were very abundant, and did not disappear in The direction and dimensions of the flues, and the relation
May and June. Myxophyceæ, again, were relatively few. of the passage of air up the flues to the cubic contents
The Swedish lakes alone approached the Scottish in the of the chambers, are stated. The average quantity of air
richness of the plankton. The Danish plankton was reexhausted per minute was 354 cubic feet per chamber of latively much poorer in Chlorophyceæ, especially Conju51 cubic feet, and on an average the air of each chamber
gates. This was to be attributed principally to the fact is completely changed every nine seconds. The small
that the geological formations are mostly of Tertiary age. height of the flues, being 25 feet, renders such a means
-On the Sarcodina of Loch Ness : Dr. E. Penard. Of of ventilation as that described readily adaptable to small
a list of nearly fifty species of Rhizopods and Heliozoa out-buildings, such as school laboratories. Details are
obtained at depths of upwards of 250 feet, several were of given as to the construction of flues with a descending
interest on account of their rarity, some being found for draught as fitted to a lecture table and fume-chamber in
the first time in Europe, others being previously known a lecture room.—On the structure of water-jets and the only from the Lake of Geneva. The majority of the effect of sound upon them, part ii. : Philip E. Belas.
Rhizopoda had probably been derived from the shallow
margins of the lake or from the neighbouring peat bogs ; EDINBURGH.
but some half dozen species or varieties were regarded as Royal Society, February 20. -Sir John Murray in the
peculiar to the abyssal portions of large lakes.--The chair.-On the graptolite-bearing rocks of the South
Rhizopods and Heliozoa of Loch Ness : J. Murray. In Orkney Islands : Dr. J. Harvey Pirie. The presence of
this paper the list of species given in the previous paper
by Penard was supplemented by a number of species Silurian sedimentary rocks in these isolated islands indicates a former much greater extension of land in the
observed by the Lake Survey, bringing the list of Loch area lying to the south-east of Cape Horn. The fossils
Ness Sarcodina up to sixty-six species. The difficulty of Pleurograptus and Discinocaris indicate their age as corre
accounting for the transmission of peculiar abyssal forms sponding to the Caradoc or Lower Llandovery, and the
from one deep lake to another was met by the suggestion structure of the rocks suggests that they belong to the
that the abyssal forms originate separately in each lake same series as the Silurian rocks of the Argentine.
and are probably not good permanent species, but modified Palæontology of the Upper Old Red Sandstone of the
forms due to the direct action of the environment on the Moray Firth area : Dr. R. H. Traquair. The fossils dis
growing individual. cussed in this paper, which embodied the research of the
PARIS. past fourteen years, were almost entirely fish remains, Academy of Sciences, April 17.-M. Troost in the chair. other remains, in the shape of badly preserved plants and --Second note on the principle of cellular flotation in certain tracks, probably of invertebrate animals, being ships : M. Bertin.-Mixed treatment by arsenious acid rare. Twenty-one species of fish were recorded, of which and trypan red of infection due to Trypanosoma : A. only seven were known from the Upper Old Red of this Laveran. Fresh experiments on monkeys confirm the region when the author took up the subject. The favourable results previously obtained on rats and dogs.character of the fish remains suggested the division of the Observations on the new comet Giacobini (1905, March 26) strata of the Moray Firth Upper Old Red into three made at Toulouse Observatory: F. Rossard.--On the 624
differential equation y" + 2A(x)y=0 : Max Mason. On the E. A. Minchin.-Some Notes upon the Anatomy of the Ferret-Badge
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Osteology of Birds, Part vii., Eurylæmidæ, with Remarks on the Sy> of powders and the pressure : R. Liouville.—Optical tematic
Position of the Group : W. P. Pycraft. properties of iono-plastic iron : L. Houllevigue.-On the ROYAL INSTITUTION, at 5.-The Study of Extinct Animals : Prof. LC
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Meeting. -At 8.--Card-Indexing and Filing: J. C. Osborne. -Apparatus and methods in the medical applications of statical electricity : L. Benoist. An attempt to systematise
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ROYAL INSTITUTION, at 9.- Problems underlying Nutrition : Prof. K. E -On the mode of formation of some monosubstituted
Armstrong, F.R.S. derivatives of urethane : F. Bodroux. When small
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PAGE describes methods for quantitatively determining the proportions of sand, mica, felspar, quartz, &c.-On
Three Cambridge Mathematical Works. By Prof. some
G. H. Bryan, F.R.S.
601 Crustacea resulting from the expedition of the Princess Alice : H. Coutière. By the use of a net with
Rein's “ Japan.”. By Dr. Henry Dyer
603 a large aperture a considerably more valuable collection
Making a Pasture .
604 was made.-On the excitation of nerves by a minimum of
Sociology. By F. W. H.
Our Book Shelf :energy, and its application to electrodiagnosis : M. Cluzet. By experiments made on the nerves of human beings, it
Balfour : "First Report of the Wellcome Research has been found through the application of a formula that
Laboratories at the Gordon Memorial College, the duration of minimum excitation may be 0.00020 second.
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603 Grindon: “Till the Sun Grows Cold"
606 -Physiology of the spleen : MM. Charrin and Moussu. The experiments made tended to elucidate the much dis
Gregory : A Short Introduction to the Theory of
606 cussed question as to the functional relationship between the liver and the spleen.—The action of intestinal fluid on
Letters to the Editor :enteric secretion : A. Frouin. Many facts seem to prove
Electromagnetics in a Moving Dielectric.-Oliver that this exciting action is not due to secretin.---Researches
606 on animal lactase : H. Bierry. The experiments show
The Dynamical Theory of Gases.-J. H. Jeans 60 that lactase is not contained in the pancreatic juice of
Growth of a Wave-group when the Group-velocity is suckling puppies.—On the production of alcohol and
Negative.—Dr. H. C. Pocklington
607 acetone by muscles : F. Maignan. The author replies in
The Transposition of Zoological Names. -Dr. R. the affirmative to the question as to whether these sub
Lydekker, F.R.S. .
608 stances, which are normally present in muscle tissue, arise
A little known Property of the Gyroscope. - Prof. by alcoholic fermentation of glucose by the agency of proto
William H. Pickering, plasm. But while the acetone continues to be formed, the
Have Chemical Compounds a Definite Critical Temalcohol is sooner or later destroyed again.
perature and Pressure of Decomposition?-Geoffrey Martin
Experiment on Pressure due to Waves.- Sidney DIARY OF SOCIETIES.
609 Tantalum. (Illustrated.) By Dr. F. Mollwo Perkin 610 THURSDAY, APRIL 27.
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