ZOOLOGY AND BOTANY, MICKOSCOPY, ETC. 287 



BeAdbtjey, "W. — The Achromatic Object-glass. XV., XVI. 



Engl. Mech., XXXVII. (1883) pp. 3-4, 74-5 (4 figs.). 



Coombs, C. P. — Notes on the Exhibition of Magnified Objects. 



Journ. Post. Micr. Soo., II. (1883) pp. 13-6 (1 fig.). 

 Cdttkiss' (T. & S. W.) Dynamo. 



[Small machines for one 20-candIe power Swan incandescent lamp.] 



Micr. News, III. (1883) pp. 56-7. 

 Davis, G. E. — The Elements of Microscopy. II. 



[Some of the properties of plates, prisms, and lenses.] 



Micr. News, III. (1883) pp. 45-51. 

 „ „ Electric Illumination for the Microscope. 



[Note on Mr. Payne's paper, infra, and circular of Mawson and Swan's in- 

 candescent lamps : — " If they had execiited the order given to them in 

 1881, Mr. Steam .... would probably have been second or third in the 

 field." " We would prefer to have the trouble of cleaning and preparing 

 the oil lamp rather than the overpowering fumes from tliree cells of a 

 Grove's or Bunsen battery. The electric light for microscopic purposes 

 is no doubt in some instances a good thing, but its conveniences need 

 not be exaggerated."] 



Micr. News, III. (1883) p. 56. 



Engelmann, T. W. — Ueber die Zusammenstellung von Sonnenlicht, Gaslicht und 



des Licht von Edison's Lampe, vergleichend untersucht mit Hilfe der Bacte- 



rienmethode. (On the Comparison of Sunlight, Gaslight, and the light of 



Edison's lamp investigated by the Bacteria method.) [Post.'] 



Bot. Centralhl, XIII. (1883) pp. 214-5. 



Ease, H. J. — On a portable Binocular Dissecting and Mounting Microscope. 

 [Post.'\ 



Journ. Quel. Micr. Club, I. (1883) pp. 109-11. 



Geikie, a. — Outlines of Field-Geology. 3rd ed. xv. and 222 pp. and 66 figs. 

 8vo, London, 1882. 

 [Contains a chapter on " Microscopical Investigation," pp. 201-15, including 

 the preparation of thin slices and the use of the Microscope. See also 

 p. 30.] 

 „ „ Text-book of Geology, xi. and 971 pp. and 435 figs. 8vo, London, 

 1882. 

 [Contains the above chapter, " with alterations and additions," pp. 182-91. 

 Also a section on Minute or Microscopic Characters of Eocks : (1) Micro- 

 scopic Elements of Eocks, and (2) Microscopic Structure of Eocks. 

 pp. 94-108 (8 figs.).] 

 Griffith, J. W., & Henfket, A. — The Micrographic Dictionary. 4th ed., by J. 

 W. Griffith, M. J. Berkeley, and T. E. Jones. 2 vols. xlvi. and 829 pp., 

 818 figs, and 53 plates. 8vo, London, 1883. 



H., E. A. C. — Magnifying measurements. 



[Inquiring why with 1-in. objective and B eye-piece, said by the maker to 

 magnify 76 times, the 1-lOOth in. divisions of the stage-micrometer only 

 appear l-3rd in. long, instead of 76-lOOths or 3-4ths in.] 



Sci.-Gossip'XlSSS) p. 42. 

 Habdingham, G. G. — Telescopes and Microscopes. 

 [Brief note on the question of antiquity.] 



Knoioledge, III. (1883) pp. 121-2. 



Haedt, J. D. — On " The Chromatoscope" : a method of illuminating crystals and 

 similar objects by coloured light. 

 [Already published, ante, p. 126.] 



Journ. Quek. Micr. Club, I. (1883) p. 108. 

 Henfeet, a. See Griffith, J. W. 



HiLGENDOEF, F. — Apparat fiir mikroskopische geometrische Zeichnungen. (Ap- 

 paratus for microscopical geometrical Drawings.) [Supra, p. 279.] 



SB. Gesell. Naturf. Freunde zuBerlin, 1882, pp. 58-60 (1 fig.). 



