992 SUMMARY OF CURRENT RESEARCHES RELATING TO 



The Microscope in Palseontology.*— Dr. M. Poignand briefly 

 sketches the use of the Microscope in palaBOntology generally, and 

 notices a few well-known instances in more detail. These include 

 bones, teeth, scales and carapaces, shells, corals, sponges, plants, &c. 

 The paper is accompanied by a plate illustrating the structure of the 

 teeth of Megatherium and the sloth. 



Adams, J. M.— Easy Method of staining Bacteria. 



[" Dissolve anilin violet, blue, or bro^vn in glycerin, with or without alcohol 

 or carbolic acid. Prepare thin covers by dropping with pipette a drop of 

 bacterial fluid on each, and allowing it to dry thoroughly. Cover the 

 dry bacterial film with a drop of the staining, and let it remain an hour, 

 or long enough to stain deeply. Put a drop of water on centre of slide, 

 and invert the cover on it ready for mounting, letting it sway slightly to 

 and fro to wash away a part of the surplus staining and glycerin,^ but not 

 to remove the film. Press down the cover with a blotter, which will 

 absorb the surplus, and ring quickly. The glycerin being washed away 

 in part does not materially dim the bacteria or affect the anilin, and it is 

 surprising how distinctly visible all kinds of bacilli, spirilla, and some of 

 the bacteria and micrococci appear by this process. 

 One pleasant advantage is tlie freedom from sediment, as is apt to occur 

 with other methods of staining, and the ease with which the depth of 

 colouring may be regulated, as well as the reliable work for time being."] 



The Microscope, IV. (1884; pp. 224-5. 

 Analysis, the Microscope in. [Post.'] 



Sci. Monthly, II. (1884) p. 187, from New York Independent Becord. 

 Aylward's (H. P.) Telescope Walking-stick to use with his Pond-life Apparatus. 



Journ. of Microscopy, III. (1884). 

 Bakeett, J. "W. — New method of cutting sections for microscopical examination. 

 [Post,] Journ, Anat. and Physiol., XIX. (1884).- 



Caldwell's Automatic Microtome. [Post.] 



Quart. Journ. Micr. Sci., XXIV. (1884) pp. 648-54 (1 pi.). 

 Chapman's (A. B.) Microscopic Slide Centerer. [Supra, p. 986.] 



Sci.-Gossip, 1884, p. 260. 

 Dimmock's (G.) Method of cataloguing and arranging slides. [Post.] 



Sci. Becord, II. (1884) pp. 185-6. 

 DoHEETY, A. J. — On Injecting. 



[Methods. Formulfle. The Syringe. Killing the animal. Injecting a 

 whole animal. Hardening injected tissues. Injecting separate parts.] 



Micr. News, IV. (1884) pp. 268-75. 

 Elsneb, F. — Mikroskopisoher Atlas (Microscopical Atlas}. Part II., 8 pp. and 2 

 pis. of 29 photo-micrographs ; Part III., 9 pp. and 2 pis. of 33 photo-micro- 

 graphs ; Part IV., 8 pp. and 2 pis. of 30 photo-micrographs. 



[Contains Cocoa, Cinnamon, Cloves, All-spice, Capsicum, Nutmeg, Mace, 

 Pepper, Saffron, Cardamom, and Adulterants.] 



4to, Halle a. S., 1884. 

 English's (H.) Typical Series of Vegetable Fibres. 



[Mounted in a mixture of glycerin and water, which is thought to be the 

 best medium for the purpose.] 



Amer. Mon. Micr. Journ., V. (1884) p. 200. 



Fell, G. E.— Examination of Agreement, Exhibit " B.' The People v. Colby. 



[Supra, p. 991.] Proc. 1th Ann. Meeting Amer. Soc. Micr., 1884, pp. 47-58. 



The Microscope, IV. (1884) pp. 207-8. 



Feeud, S. — Eine neue Methode zum Studium des Faserverlaufs im Central- 



nervensystem. (A new method of studying the central nerve-system.) [Post.] 



Arch. f. Anat. u. Physiol., 1884 {Anat. Ahtheil.) pp. 453-60. 



* Journ. of Microscopy, iii. (1884) pp. 163-70 (1 pi.). 



