PREFACE TO SECOND EDITION. The favourable reception which the first edition of this work received, both in this country and America, has induced me to spare no exertion to render the second, worthy of the continued confidence of the profession, as a guide to the practitioner, and a text book for the student. The whole work has been subjected to careful revision, and without unduly extending its limits, pains have been taken to allow nothing of importance to escape attention. Many of the wood-cuts have been re-drawn, and others added, together with much important new matter. My cordial thanks are due to Dr. Lionel Beale, F.R.S., &c.; Dr. Carpenter, F.R.S., L.L.D., &c. for loan of plates; also to my friend Dr. T. A. Kennedy for his kind suggestions during the progress of the work; and to the printer Mr. Dickinson for the able manner in which he has carried it through the press. Trusting that my labours will meet the approval of my friends and brother scientists I with pleasure leave it to speak for itself. MICRO-ASSAY LABORATORY, YORK CHAMBERS, ADELPHI, LONDON, W.C. JOHN H. MARTIN. March, 1878. A MANUAL OF MICROSCOPIC MOUNTING. CHAPTER I. APPARATUS NECESSARY FOR MICROSCOPICAL RESEARCH. 1. In a work like this, which will chiefly treat of various methods of mounting, a description of different microscopes, &c., would be foreign to the subject. I therefore leave this by remarking that good working microscopes can now be purchased for about £5 each, many of which contain apparatus sufficient for the use of a beginner. The apparatus to which I wish to draw the attention. of the reader chiefly consists of the section cutter, turntable, holding screw, apparatus for drying, dissecting, bleaching, &c., most of which are necessary to the student in conducting branches of microscopical study. Works have been published including forms of apparatus, but with the exception of those of Dr. Lionel Beale, not many have been published of late years. Some of the forms of apparatus have been kindly lent, others-which are chiefly original— have been used by the author in his own private study. Drawings have also been added to the descriptions of these various forms of apparatus, so as to make them as useful as possible. The larger apparatus will be explained first, and the smaller and miscellaneous articles afterwards. B |