ZOOLOGY AND BOTANY, MICKOSCOPY, ETC. 699 



Hcurck, G. Pouchet. (The Micrographical Student, tlieoretical and practical 

 treatise on the Microscope and preparations. 3rd ed., with additions on its 

 applications to the study of anatomy, hotany, and histology.) xvi. and 591 pp. 

 Portrait, 179 figs., and 7 pis. 8vo, Paris, 1882. 



Crisp, F. — Notes sur l'Ouverture, la vision microscopique et la valeur des 

 objectifs a immersion a grand angle. (Notes on Aperture, Microscopical Vision, 

 and the value of wide-angled Immersion Objectives) — contd. 

 [Transl. of paper, ante, I. (1881) pp."303-60.] 



Joum. de Microgr., VI. (1882) pp. 362-5 (3 figs.), 417-8 (3 figs.). 

 Davis, G. E. — Prof. Abbe's Paper on the Relation of Aperture and Power in 

 the Microscope. North, Microscopist, II. (1882) pp. 211-2. 



„ „ A Plea for Wide Apertures. 



[" A reply to Prof. Abbe's paper ' On the Relation of Aperture and Power 

 in the Microscope.' "J 



North. Microscopist, II. (1882) pp. 229-38 (1 pi. of 4 photos.). 

 „ „ How to Found a Local Microscopical Society. 



North. Microscopist, II. (18S2) pp. 212-6. 

 Dippel, L. — Das Mikroskop und seine Anwendung, ler Theil. Handbuch der 

 Allgemeinen Mikroskopie, le Abtheilung. 



2nd ed., 8vo, Braunschweig, 1882, viii. and 336 pp., 189 figs. 

 „ „ Die Correctionsfassung bei Objectiv -Systemen fur homogene 



Immersion. Zeitschr. f. Instrumentenk., II. (1882) pp. 269-74. 



Dyck, F. 0. Van. — Significant Angle. 



[Objections to the paper of the Hon. J. D. Cox, ante, p. 422.] 



Amer. Mon. Micr. Joum., III. (1882) pp. 154-5. 

 Engelmann, T. W. — TTeber Sauerstoffausscheidung von Pflanzenzellen im 

 Mikrospectrum. (On the disengagement of oxygen by vegetable cells in the 

 Microspectrum.) 



[Contains a description of the Microspectroscopic Apparatus, ante p. 564, 

 and supra p. 661.] 



Bot. Ztg., XL. (1882) pp. 419-26 (1 fig.). 

 Flesch, M. — Beleuchtungsvorrichtung zum Mikroskopiren bei kunstlichen 

 Licht. (Illuminating Apparatus for Microscopical Observations by Artificial 

 Light.) 



[The numerous lamps of often complicated structure are superfluous for 

 histologists or for other purposes than resolving test objects. Light 

 modifiers of tinted glass are, however, useful., and can be arranged to 

 be conveniently placed in the carrier-plate of the Abbe condenser. 



Sep. repr. SB. Phys.-Med. Gesell. Wilrzburg, 1882, 2 pp. 

 Gbinow's (J.) New Microscope. 

 [No speciality in form.] 



Amer. Mon. Micr. Joum., III. (18S2) pp. 146-7 (1 fig.). 

 Gtjndlach's (E.) Substage Refractor. 



[For measuring the apertures of wide-angled objectives. Supra, p. 692.] 

 Amer. Mon. Micr. Joum., III. (1882) pp. 142-3 (1 fig.). 



Gcndlach, E. — A Simple Method of determining the Angle of Aperture of 

 Immersion Objectives. 



[Apparently the same as the preceding.] 



Amer. Mon. Micr. Joum., III. (1S82) p. 176. 

 Gcndlach's yig-in. objective. 



[Notices its intended manufacture. " We hope to live long enough to 

 see it."] 



Amer. Mon. Micr. Joum., III. (1882) p. 158. 

 Hececk, H. Van.— See Chevalier, A. 

 Hitchcock, R. — Physicians and Microscopists. 



[Rejoinder to the ' Medical Register' as to their comments on the original 

 note, ante, p. 423.] 



Amer. Mon. Micr. Joum., III. (1SS2) p. 136. 



