ZOOLOGY A.ND BOTANY, MICROSCOPY, ETC. 691 



Latham, V. A, — The Microscope and how to use it. XI. Injecting, &c. (contJ.) 



Journ. of Mkroscopii, VI. (1887) pp. lfi9-79. 

 LtSTGARTEN, S. — Victoriablau, ein neues Tiactionsmittel fur elastische Fasem und 

 fiir Kerne. (Victoria blue, a new staining medium for elastic fibres and nuclei.) 



Wiener Med. Jahrb., 1886, p. 285. 

 [Man TON, W. P., AND OTHERS.] — Stains. 



[" How often, for instance, we read of a new objective that promises wonders. 

 Such and kindred productions, of great value withiil, are examined and discussed, 

 till the next new objective or what-not displaces it. All this is as it should be. 

 But do we show the same enthusiasm and interest over a new stfiin that allows 

 us, perhaps, to study some object more satisfactorily with a 1/6 tlian could 

 formerly have been done with a 1/8? We think not. All this is wrong. Is 

 the new apochromntic glass — granting, even, all that is claimed for it^— of greater 

 importance to us tliau the results of the studies in the anilin dyes that indi- 

 vidualized the B. tuberculosis? There are many who hold that we have about 

 reached the limit of perfection in lenses. Be this as it may, the goal certainly 

 does not seem to bi' so very far distant. But tlie province of stains has not as 

 yet been invaded to any very great extent. And especially is this true aa 

 regards diiferential staining."] 



The Microscope, VII. (1887) p. 110. 

 Reynolds, R. W. — Injecting and cutting sections of the Cat. 



The Microscnpe, VII. (1887) pp. 156-9. 

 Unna, p. G. — Ueber Erzeugung von Vesuvin im Gewebe und iiber Metaphenyl- 

 endiamin als Kernfarbemittel. (On the formation of vesuvin in the tissues and 

 on metaphenylendiaiiiin for nuclear staining.) 



Monatschr. f. prakt. Derm^ttol., 1887, p. 62. 

 v., R. E. — Permanganate of Potash as a Staining Medium for Micro Objects. 



[ For examining tissues of plants. " It defines edges of cells, markings on cell- walls, 

 &c., mure strongly than other dyes."] 



EmjI. Mech., XLV. (1887) p. 346. 

 Weigert, C. — TIeber eine neue Methode zur Farbung von Fibrin und von Micro- 

 organismen. (Ou a new method of staining fibrin and micro-organisms.) 



Fortschr. d. Med., 1887, pp. 228-.32. 

 Wellington, C. — Staining and Mounting Plant Sections. 



The Microscope, VII. (1887) pp. 133-4. 



(5) Mounting:, including Slides, Preservative Fluids, &c. 



Flask for dehydrating specimens to be mounted in balsam or paraffin.* 



— Dr. P. Francotte's debydrator, tbe idea of wbicb is taken from Scbulze's 

 apparatus,! consists of a broad-necked flask to bold about balf a litre. Tbis con- 

 tains alcobol and sulpbate of copper. Into tbis flask is passed a dialy sing tube, 

 6-6 cm. in diameter. It is closed above by a plate of glass, and below by a 

 piece of parcbment paper. Tbe flask is plugged witb a muslin bag filled 

 witb quicklime. Tbe flask contains a float for marking tbe strengtb of tbe 

 spirit from 94^-100^. A similar float is placed in the dialysing tube, and 

 when tbe spirit in tbis tube is of 100°, it is emptied into the flask. Tbe 

 specimen is placed in the tube along with alcohol at 94°, and care has to be 

 taken that the level of tbe liquid in the tube is the same as that in tbe flask. 

 The apparatus works more quickly in a warm place. 



Permanent Preparations on firm media. J— Dr. J. Soyka when employ- 

 ing firm opaque nutritive material, as bread, potato, rice, uses round glass 

 vessels about 6 cm. in diameter and 3 cm. high. The edge is bent out- 

 wards at the top for about 1 cm. and well ground, so that a plate of glass 

 about 8 cm. in diameter can be cemented on. These vessels are then care- 

 fully stuffed to the height of 1 cm. witb the medium, and tbe surface of tbe 

 latter carefully levelled. After having been sterilized and inoculated witb 

 tbe cultivation the sterilized cover is cemented on. Pure cultivations, as 

 braad and potato, will keep for at least two years, and thus are always ready 



* Bull. Soc. Beige Micr., xiii. (1887) pp. 146-7. 



t See this Journal. 1886, p. 537. 



X Centralbl. f. Bacteriol. u. Parasitenk., i. (1887) pp. 542-4. 



