526 SUMMARY OF CURRENT RESEARCHES RELATING TO 



DiLLEE, J. S. — The Microscopical Study of Eocks. 



[Brief notes on the history of the Bubject, on French and German petro- 

 logical Microscopes, and on mounting.] 



Amer. Mon. Micr. Journ., VII. (1886) pp. 41-2 and 59, 

 Dudley, P. H. — Photo-micrographs ofWood Sections. 



[Exhibition only. Photographs 0-93 in. in diameter, taken by lamplight on 

 8 X 10 in. bromo-gelatin plates, with a magnification of 10,000.] 



Trans. N. York Acad, of Sci., III. (1885) p. 107. 

 Dunning, C. G. — Note on a new form of Live-box or Zoophyte-trough. 



[Ante, p. 138.] Journ. Quek. Micr. Club, II. (1886) pp. 249-51 (3 figs.). 



Eteenod, a. — Planche a dessin universelle pour les lahoratoires de Microscopie. 

 (Universal drawing-board for microscopical laboratories.) \_Post.'] 



Internat. Monatsschr. f. Anat. u. Histol., II. (1885) No. 6. 

 EwELL, M. D. — Metal Micrometers. [Supra, p. 521,] 



The Microscope, VI. (1886) p. 63. 

 F.R.M.S. — Campbell's Fine Adjustment. 



[Reply to Mr. Campbell's letter, supra, and pointing out that Mr. Nelson 

 did originally recommend it for students' Microscopes. Gundlach and 

 Eoss have already applied the differential screw to fine adjustments.] 



Engl. Mech., XLIII. (1886) p. 239, 

 Fennessey, B. B. — [Eyes of Animals as Objectives.] 



[" Have the eyes of animals ever been substitiited for the objective of the 

 Microscope ? I often see the eyes of fish and birds fading into nothingness, 

 and I feel regret that some means of utilizing them for optical purposes 

 is not practised. Doubtless such lenses are perfect. Could they not be 

 frozen with an ether spray whilst using them, or could not our scientists 

 think of some substance which will preserve them from decay without 

 destroying their form or impairing their transparency?"] 



Engl. Mech., XLIII. (1886) p. 133. 

 Fkancotte, p. — Microscope de voyage de Nachet. (Nachet's Travelling 

 Microscope.) 



[Cf. Vol. II. (1882) p. 98.] Bull. Soc. Belg. Micr., XII. (1886) pp. 60-1. 



Girard, A. C. — See Peyer, A. 

 Glasgow Microscopical Society, Formation of. Nature, XXXIV, (1886) p. 14. 



Graif, T. S. Up de, Memoir of. 



Proc. Amer. Soc. Micr., 8th Ann. Meeting, 1885, pp. 216-22. 



See also pp. 230-2. 

 G E I F F I T H, E. H.— Some new and improved Apparatus. 



[Substage diaphragm (ante, p. 130). Mechanical finger objective (Vol. V., 

 1885, p. 709).] 



Proc. Amer. Soc. Micr., 8th Ann. Meeting, 1885, pp. 112-4 (4 figs.). 

 „ „ Our Eighth [Ninth ?] Aimual Meeting. 



[As to the prospects, &c., of the Chautauqua Meeting of the Amer. Soc. of 

 Micr.] 



The Microscope, VI. (1886) pp. 58-60. 



Gundlach, E. — On Immersion Objectives. [Supra, p. 510.] 



Proc. Amer. Soc. Micr., 8th Ann. Meeting, 1885, pp. 51-3, 236-7. 



„ „ Astigmatism and its relation to the use of optical instruments 



further considered. [Supra, p, 509.] The Microscope, VI. (1886) pp. 63-5. 



Ha gee, H. — Das Mikroskop und seine Anwendung. Ein Leitfaden bei mikro- 



skopischen Untersuchungen fiir Apotheker, Aerzte, Medicinalheamte, Eauf- 



leute, Techniker, Schullehrer, Fleischbeschauer, &c. (The Microscope and its 



Use. A guide to microscopical investigations for chemists, physicians, 



medical officers, merchants, technicians, school-teachers, meat-examiners, &c.) 



7th ed., viii. and 240 pp., 316 figs. (8vo, Berlin, 1886). 



Heueck, H. van. — Le Microscope a I'Exposition Universelle d'Anvers. (The 



Microscope at the Antwerp Universal Exhibition.) (Concld.) 



[Preparations (Prince of Monaco — Montaldo's Wood Sections) — Photo- 

 grams — Various accessories.] 



Journ. de Microgr., X. (1886) pp. 75-80. 



