338 SUAIIIARY OF CURRENT RESEARCHES RELATING TO 



Mali.ky, a. C. — Plioto-niicrography, incliidin"; a description of tlie Wet Colloilion 

 and fxolatiiio-brninide pioci'ssos, with tlie best methods of mounting and pre- 

 paring microscopic objects for plioto-micrograpliy. 



2nd cd., vi. and IGG j))). (3 pis. and 28 figs.), 8vo, London, 1885. 

 MataLL, J., Juu. — Nobcrt's Ruling Machine. Ifnfra, p. 378.] 



Times, 6th and 28M March, 1885. 

 Enyl. Mech., XLI. (1885) p. 30. 

 Michael, A. D. — See Nelson, E. M. 



Micrometer, Standard, report of Committee on, — with reports of G. E. Fell, W. A. 

 Rojjers, and \V. A. Anthony. 

 [Reports " the result of the effort to obtain copies of the Standard."] 



Proc. Ainer. Soc. ifkr., 7th Ann. Meeting, 1884, pp. 220-7. 

 Microscopist, What is a? [Supra, p. 333.] Science, V. (1885) p. 164. 



Nelson, E. M. — Microscopic Illumination. 



[" Right-angled prisms are used in telescopes for the purpose of economizing 

 every particle of light. In the Microscope, however, even with a 1/2 in. 

 wick there is more light than one knows what to do with."] 



Mnjl. Mech., XL. (1885) p. 482. 

 „ „ Triceratium. 



[Reply to query by G. Hunt, supra, and further denunciation of the 

 " oblique light and striai business."] 



Ibid., p. 5G0. 

 „ „ Brass and Glass. 



[(1) Testing the different sectors of Objectives, supra, p. 324. (2) Simple 

 condenser, supra, p. 327.] 



Ihid., XLI. (1885) p. 34 (2 figs.). 

 ,, „ Standard thickness of glass slips, and remarks by A. D. Michael 

 and W. B. Carpenter. [Supra, p. 329.] 



Journ. Quek. Micr. Club, II. (1885) pp. 120-1. 



Oculars, report of the Committee on, with appendix of extracts from paper by 

 F. Crisp on "Optical tube-length," Vol. III. (1883) p. 816. 

 Proc. Amer. Soc. Micr., 7th Aim. INIeeting, 1884, pp. 228-33 (1 fig.) and 277. 

 Phillips, P. A. — Amphipleura peUucida — to Dr. Royston-Pigott. 



[Inquiry as to how far his experimental proofs {infra) go against the Abbe 

 diffraction theory.] 



Fnjl. Mech., XL. (1885) p. 580. 

 Photo-micrography at the Health Exhibition. 



[A description of the aiiroscopes, culture-cells, sterilizing and other 

 apparatus, Microscopes, photo-micrographs and apparatus. Post.'] 



Amer. Mon. Micr. Journ., YI. (1885) pp. 28-32, 

 from Brit. Journ. of Photography. 



'• Prismatiqce." — Conical Illumination for opaque objects. 



[Consists of a glass paraboloid in immersion contact with the upper surface 

 of the slide having a cylindrical hole in the centre for the objective to 

 pass through and focus on the object. " Gamma Sigma " points out that 

 none of the rays reflected from the back surface could possibly reach the 

 object unless the cylindrical opening is filled with oil, and not many even 

 then !J 



ETigl. Mech., XL. (1885) p. 520 (1 fig.). 

 QcEEN, J. W.— Note on Centering the Illuminating Beam. [Postj] 



Micr. Bulletin, H. (1885) p. 1 (4 figs.). 

 Rogers' (W. A.) Stage-micrometer. [Supra, p. 330.] 



Amer. Mon. Micr. Journ., VI. (1885) p. 38. 

 » i> See also Micrometer. 



Royal Microscopical Society, visit of deputation from, to the American Society of 

 Microscopists. Proc. Amer. Soc. 31icr.,7ih Ann. Meeting, 1884, pp. 262, 269,271. 

 Royston-Pigott, G. W .—Amp/dpleura pellucida. 



[Result of examination with the Diatomescope.] 



£7hjl. Mech., XL. (1885) p. 520. 



