ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 135 



Fbasse & Co.'s Mikrometer-Dickmesser. (Micrometrical-measurer of thickness). 

 [Measures to 1-lOOOth in.] 



Centr.-Ztg. f. Opt. u. Mech., III. (1882) p. 27i (1 fig.). 

 GiLTAT, E. — Ueber die Abbe'sche Camera Lucida und eine iin allgemeinen an 

 Cameras anzubringende Verbesserung. (On the Abbe Camera Lucida and an 

 improvement applicable to Cameras in general.) [Post.'] 



Bot. Centralbl, XII. (1882) pp. 419-22. 

 Geiffith, E. H. — The improved Griffith Club Microscope. \_Suprrx, p. 113.] 



Proc. Amer. Soc. Micr., 5th Ann. Meeting, pp. 149-52 (3 figs). 

 Cmcinn. Med. News, XI. (1882) pp. 762-4 (2 figs.). 

 Gkunow's (J.) New Camera Lucida. [_Supra, p. 120.] 



Amer. Mon. Micr. Journ., III. (1882) p. 201 (1 fig.). 

 GuNDLACH, E. — On Light and Illumination. 



Proc. Amer. Soc. Micr., 5th Ann. Meeting, 1882, pp. 79-90, 255-61. 

 Haseet, B. — Kombination von Okularlinsen welche die Achromatisirung eines 

 einfachen Kronglas-Objektives direkt bewirken. (Combination of ocular- 

 lenses which effect the achromatising of a single crown-glass objective.) 

 [Title (only) of German Patent No. 20729, 4th April, 1882.] 



Centr.-Ztg. f. Opt. u. Mech., III. (1882) p. 288. 

 HiLGENDOEF, F. — Apparat fiir mikroskopische geometrische Zeichnungen. 

 (Apparatus for microscopical geometrical drawings.) \_Post.'] 



Zeitschr. f. Instrumentenk., II. (1882) pp. 459-60 (1 fig.). 

 Hitchcock, E. — Eemarks on the Illumination of Insect Preparations mounted 

 without pressure. \_Post.'] 



Amer. Mon. Micr. Journ., III. (1882) p. 219. 

 „ „ The Podura-scale. 



[Remarks on the different appearances with objectives of different makers.] 



Amer. Mon. Micr. Journ., III. (1882) pp. 224-5. 

 „ „ Commendation of Spencer's l-15th in. " Professional " objec- 



tives. Also of ToUes' l-6th in, on AmphipAeura pellucida. 



Amer. Mon. Micr. Journ., III. (1882) p. 238. 

 „ „ Note on the aperture discussion at Manchester. 



Amer. Mon. Micr. Journ., III. (1882) p. 238. 

 Hitchcock's (R.) Journal. 



[Anonymous criticism of note on p. 177 of Vol. III.] 



The Microscope, II. (1882) p. 166. 

 HoxJGHTON, W. — The Microscope and some of the wonders it reveals. 4th ed. 



iv. and 128 pp. (47 figs.). 8vo, London, n. d. 

 " Jumbo " and " Midget " Microscopes. 



[" ' Among the curiosities recently exhibited by a London Society was the 

 Microscope of half a century ago, weighing 125 pounds, and the ' Midget,' 

 a modern invention, weighing only a few ounces,' so says a newspaper."] 



The Microscope, II. (1882) p. 172. 

 Kent, W. K. — Live Cage for dry objects. 



[" It consists of a wooden slide, with a cover-glass set near one end, and a 

 spring-clamp near the middle. In other half slides of different thickness 

 cover-glasses were inserted {sic), and these, when placed under the spring- 

 clamp, which held them firmly in place, made convenient cells."] 



The Microscope, II. (1882) p. 172. 



Kbuess, H. — Die wissenschaftlichen Instrumente auf der Bayrischen Landes- 



Industrie-, Gewerbe-,und Kunst-Ausstellung in Niirnberg 1882. (The Scientific 



Instruments at the Bavarian Eural-Industrial, Trade, and Art Exhibition in 



Nurnberg 1882.) 



[Brief reference to a Microscope made by the Niirnberg Industrial School.] 

 Centr.-Ztg. f. Opt. u. Mech., III. (1882) pp. 255-9. 

 M'^Calla, a. — Circular (from the President) to the Members of the American 

 Society of Microscopists. 

 [Exhortation to co-operation with the officers of the Society to advance the 

 cause of microscopical research and scientific progress.] 



14th October, 1882. 



