976 SUMMARY OF CURRENT RESEARCHES RELATING TO 



Smith, J. Lawrence, Memoir of. 



rinventor of the Inverted Microscope.] 



Proc. Amer. Acad. Arts and Sci., XIX. (1884) pp. 535-9. 



Society Screw, Committee appointed by American Society of Microscopists as to. 

 IFost.'] Amer. Mon. Micr. Journ., V. (1S84) p. 172. 



Spencer, C. A., and Tolles, R. B., Proposed Memorials to. 



Amer. Hon. Micr. Journ., V. (188i) p. 171. 



Spencer's (H. R. & Co.) Objective Protector. {Supra, p. 959.] 



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



Strickeh, S. — Ueber das elektrische Licht als Hiilfsmittel fur den mikroskopischen 

 Unterricht. (On the electric light as an aid for microscopical instruction.) 



Wiener Med. Jahrbucher, 1883, pp. 463-75. 



Swift & Son's New 1-in. Objective, 40° Angle of Aperture, " constructed on an 

 " entirely new optical principle, whereby extraordinary depth of focus and 

 " flatness of field combined with resolving power is obtained. This objective 

 " works beautifully with the Binocular Microscope, and owing to its large 

 " angular aperture is rendered the best objective extant for use with the Lau- 

 " tern-projecting Microscope." Sci.-Gossip, 1884, p. cxvi. (Advt.). 



Taylob, J. E.— The Aquarium: its Inhabitants, Structure, and Management. 



New ed. 



[Contains " The Aquarium as a Nursery for the Microscope,'' pp. 113-38.] 

 xvi. and 316 pp. (239 figs.), 8vo, London, 1884. 



Tolles, R. B.— See Spencer, C. A. 



Wallich, G. C. — An improved form of "Condenser" for the Microscope. 

 [Supra, p. 962.] Specification of Patent, No. 7639, 13th May, 1884. 



Watts, H. — [Postal Microscopical Society formed in Australia.] 



Journ. of Micr., III. (1884) pp. 261-2. 



West, T. — Blackground illumination [is a poor way of getting at the facts which 

 a specimen may disclose ; so also is polarizing . . . , ] 



Journ. of Microscopy, III. (1884) p. 247. 



Wilson, W. L. — A cheap Microscope holder. 



[" It costs about a penny, and works as well as a guinea one with uni- 

 versal brass hinge. It consists of a turned American clothes-peg, held 

 between two upright strips of wood, and these are bound at the top with 

 an elastic band, which is passed three times round them. The bottom 

 end of the strip is held by one screw to a block of wood. The clothes- 

 peg thus has every motion, up and down between the strips of wood, 

 round upon its own axis, and sideways on a hinge."] 



Sci.-Gossip, 1884, p. 260. 



Woodward, B. B. — The Microscope: how to make and how to use one. 



Young England, 1884, pp. 213-5 (3 figs.). 



Woodward, J. J., death of. Amer. Mon. 2Iicr. Journ., V. (1884) pp. 173-4. 



Cine. Med. News, XVII. (1884) pp. 571-5. 



Wray, L., Jun. — An Improved Microscope Screen. \_Supra, p. 956.] 



Engl. Mech., XL. (1884) p. 180 (1 fig.). 



