ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 727 



Gartner, G. — Ueber den Nachweis des Warmetonus der Blutgefasse mittels 

 electrischer Beleuchtung. (On the detection of the influence of heat on the 

 tonicity of the blood-ves8els by electric illumination.) 



A'lj. Wiener Med. Ztj., 1884, p. C9. 

 Griffith, E. H. — See American Society of Microscopists. 

 GuNDLACH, E. — The Examination of Objectives. (Condd.') 



Mior. Bulletin (Queen's) II. (1885) pp. 18-9, 

 from Amcr. Journ, liter, for 18G7. 

 Hardy, J. D. — Microscopical Delineation. 

 [Abstract only.] 



Sth Ann. Report Hackney Micr. and Nat. Hist. Soc, 1885, pp. 28-9. 

 Hawkins, R. — Observatory Trough. 



[Supra, p. 719.] Sci.-Gossip, 1885, p. 135 (1 fig.). 



Her VET, A. B. — See Behrens, J. W. 

 [Hitchcock, R.] — Silvering Glass Eeflectors. 



[Formula of Mr, J. Browning for silvering glass specula.] 



Amcr. Man. Micr. Jvurn., VI. (1885) pp. 118-9. 



Holmes, E. A. — Polarized Light as applied to the Microscope. 



[Paper read before the Hackney Microscopical Society.] 8 pp., 6 figs. 



Hunt, G. — The Eight-angled Prism instead of a Plane Mirror in the Microscope. 

 [S'ipra, p. 709.] Engl. Mech., XLI. (1885) p. 414. 



Hunter's (J. J.) New form of Graduating Iris Diaphragm. 



[Exhibition only. " Made to go close up under the object."] 



Journ. Quck. Micr. Club, II. (1885) p. IGI. 



Jadanza, N. — Sui punti cardinali di un sistema diottrico centrato e sul 



cannochiale anallattico. (On the cardinal points of a centered dioptric system, 



&c.) Atti R. Accad. Sci. Torino, XX. (1885) pp. 917-33 (8 figs.). 



Klein, C. — Optische Studien am Leucit. (Optical studies on Leucite.) 



[Contains a description of a new Microscope devised by the author forminera- 

 logical-petrological researches, pp. 436-43. I'ost.^ 



Nachr. K. Gesdl. Wiss. Gbttingen, 1881, pp. 421-72 (1 pi.). 



Leptna Y, M. DE. — Methode optique pour lamesure absolue des petites Imgueurs. 

 (Optic method for the absolute measurement of small lengtlis.) \_I'ost.'] 



Comptes Rcndus, C (1885) pp. 1377-9. 



L M M E L, E. — Bermerkungen zu dem Auf satz ; TJeber einige optische Methoden 

 und Instrumente. (Remarks on the article " On some optical methods and 

 instruments.") 

 [Remarks as to the priority of Prof. Abbe and others in regard to the 

 original paper ante, p. 532.] 



Zeitschr. f. Instrumentenk., V. (1885) p. 200. 

 M. — Amateur Lens-making. 



[Directions for making lenses, with description and figures of tools.] 



Ungl. Mech., XLI. (1885) pp. 424-5 (10 figs.), 

 from Scientific American Suppdement. 



M ' A L L I ST EB. — Slide showing Path of Electric Spark. 



[A slide, after being smoked over a small gas-jet, is placed centrally 

 between tlu; terminals of an induction coil, and at right angles to tlieir 

 direction. Tlie terminals are held about 3/8 in. apart. A strong current 

 ia refjuired] 



Journ. N. York Micr. Soc, I. (188.5) p. 101. 

 Maya ll, J., jun. — Nobert's Euling Machine. {Conoid.) 



Knowledge, VII. (1885) pp. 4.52-3, 504-5, 523-4, 

 from Journ, Soc. A7-ts, 

 M I LLKu, M. N. — Theory and Practice of Photomicrography. I., II. 



[Paper read bf.fore the Photographic Section of the American Institute. 

 DcsfTibes apparatus and gives practical instriiftions.] 



Engl. Mech., XLI. (1885) pp. 298, 359 (11. 



3 B 2 



