440 SUMMARY OF CURRENT RESEARCHES RELATING TO 



Bale, W. M. — How to make an Eye-piece Micrometer. [PostJ] 



Southern Science Record, III. (1883) pp. 13-6. 

 Bond, G. M. — A Standard Gauge System. 



[Describes a comparator and tlie Microscopes used and their illumination, 

 &c.] 



Journ. Franklin Institute, CXV. (1883) pp. 330-9. 

 Beadbtjbt, W.— Tlie Achromatic Object-glass, XVII.-XIX. 



Engl. Mech., XXXVII. (1883) pp. 100-1 (2 figs.), 188-90 (5 figs.), 259-60. 

 Beajian, B. — The usefulness of the Microscope as an Instrument of Recreation. 

 [President's Address to the New York Microscopical Society. The subject 

 is dealt with under four heads. (1) The Microscope serves for diversion. 

 (2) Microscopical recreation possesses the virtue of enthusiasm. (3) 

 Recreations with the Microscope minister to benevolence and (4) serve 

 for education.] 



Ainer. Mon, Micr. Journ., IV. (1883) pp. 65-7. 

 Conversaziones, the Microscope at. 



[Remarks on devices for preventing the coarse adjustment from being 

 moved.] 



Southern Science Record, III. (1883) p. 32. 

 Detmers, H. J. See Thomas, B. W. 



DoLBEAE, A. E. — The Art of Projecting. A Manual of Experimentation in 

 Physics, Chemistry, and Natural History, with the Port-Lumiere and Magic 

 Lantern, vi. and 158 pp. and 112 figs. 8vo, Boston, 1883. 



[Includes projections of micro.scopical objects and the solar microscope.] 

 DowDESWELL, G. F. — Notc on Cobweb Micrometers with the second web movable. 

 {Supra, p. 422.] 



Quart. Journ. Micr. Sci., XXIII. (1883) p. 337. 

 Flesch, M. — Beleuchtungsvorrichtungen zum Mikroskopiren bei kiinstlichen 

 Lichte. (Illuminating Apparatus for microscopical observations by artificial 

 light.) 



[Vol. n. (1882) pp. 699 and 726.] 



SB. Phys.-Med. Gesell. WUrzburg, 1882, pp. 37-8. 

 FoLSOM, D. — A Home-made Substage Condenser. 



[A piece of substage-tube is made to carry within it an objective to be used 

 as a condenser. At the lower end of the tube, in which the objective is 

 screwed, there is " a carefully-cut thread for focussing the objective 

 operated by a milled head."] 



Amer. Mon. Micr. Journ., IV. (1883) p. 46 (1 fig.). 

 Forbes, S. A. See Thomas, B. W. 



Halley, J. J. — The Vice-President's Address to the Microscopical Society of 

 Victoria. [^Post.'\ 



Southern Science Record, II. (1882) pp. 285-9. 

 Hitchcock, R.— Distortion produced by Camera-Lucidas. \_rost.'\ 



Amer. Mon. Micr. Journ., IV. (1883) pp. 43-5 (2 figs.). 

 „ „ A Moist-chamber for Cultivation. \_Supra, p. 428.] 



Amer. Mon. Micr. Journ., IV. (1883) pp. 56-7. 

 „ „ An ewemng vii^ Amphipleura pelhicida. 



[Results of testing the new 1-1 0th in. Spencer objective.] 



Amer. Mon. Micr. Journ., IV. (1883) pp. 57-8, 

 „ „ Postal Microscopical Club. 



[Note on the first box received this season.] 



Amer. Mon. Micr. Journ., IV. (1883) pp. 75-6. 

 ,, „ See Reddots, C. 



Jennings, T. B. — A Work-table. 



[A box-arrangement on the top of the work-table. " Internal height 18 in. 

 There are two strong uprights let through the top and screwed to the 

 hind legs of the table. The back is stationary, and is screwed on the 

 outside of the two uprights ; the sides swing by hinges from the back ; 

 the top is also hinged to the back and opens upward, and the front is in 



