XXXIV 



CONTENTS. 



ToLLES Memorial Fund, Donation of Society to Part 



Heubck's, H. VAS—Ainp'iipleura pellucida resolved into " Beads " — 



Nature of the Strix of Diatoms „ 



Beck's Portable Battery for Small Fncatidescence Lamps for tlie Microscope ,, 



Wright, L. — The Lantern Microscope ( Figs. 40-2) Part 



Stephenson', J. W. — On a Cata-dioptric Immersion Illuminator .. ,. „ 



Schieck's (F. W.) Bacteria Microscopes (^Figs. 45 and 46) „ 



Reichert's (C.) i\'o. TV/. iftcrosco/3e (Fy. 47) „ 



Stein's (S. T.) Microscopes for use icith the Electric Light (_Figs. 48-54) „ 



SvrveT's Sheep-scab Microscope (^Fig. 55) „ 



Winkel's Demonstration Microscope {Figs. 56 and 57) „ 



ToLi,Ks' (R.) Clinical Microscope {Fig. 5S) , 



Klonne & Mulleb's Pocket Microscope ( Figs. 59 and 60) „ 



Jaxney's (R.) Simple Solar {or Projection) Microscope {Fig. 61) .. .. „ 



Thompson's (W. G.) Projection Microscope {Fig. 62) „ 



Halliek, E., L. Edingek, & C. J. Taylor — Apparatus for Botanical 



Lectures {Figs. 63 aiul 6i) „ 



Brunx, a. v. — Westien's Universal Lens-holder {Figs. 65-67) . . . . „ 



Ward's (R. H.) & QvEEN's (J. W.) iens-AoWe;rs (Fi<7s. 68-69) .. .. „ 

 Dissecting Microscopes irith Briicke Lens (C. Zeiss, Klonne & MCller, 



F. W. ScHiECK, & W. Booker) (Fys. 70-75) , 



Stasx>AB.I> Eye-pieces ,, 



Nelson, E. M., E. Abbe, & L. Dippel — Testing the different Sectors of 



Objectives {Fig. 76) „ 



Cost of Objectives of large Aperture „ 



Francotte, P. — Finder {Fig. 77) „ 



Wart)'s{'R. K.) Iris Illuminator {Fig. 7S) 



"SEhSOv's {^."M.) Simple Condenser {Fig. 70) „ 



Madan's (H. G.) Method of isolating Blue Bays for Optical Work .. „ 

 „ „ Modification of Foucault's and Ahrens's Polarizing 



Prisms {Fig. 80) „ 



iLLrMlNATiON of Microscopes and Balances „ 



Nelson, E. M., A. D. Michael, «fe W. B. Carpenter — Standard 



Thickness of Glass Slips „ 



Rabl's (C.) Slide for Vieuring Objects on both Sides {Fig. 81) „ 



Whitn-xy's (J. E.) Zi/e-^ox „ 



Rogers, W. A. — Micrometers Mounted in media of High Refractive 



Index „ 



Atwood's (H. F.) Apparatus for Photo-micrography {Fig. 82) . . . . „ 



Cox, J. D. — Actinic and Visual Foci „ 



VoRCE, C. M. — Compound Negatives „ 



Fritsch, G. — Monocular Stereoscopic Vision „ 



JoCBNAl, of the New York Microscopical Society „ 



Stuasbwigeb's {E.) Practical Botany „ 



Hitchcock, R. — Microscopical Societies „ 



^' What is a Microscopist?" „ 



Bacsch, E. — Universal Screw for Microscope Objectives „ 



Bulloch, W. H. — Magnifying Power of Objectives and Position of 



Wollaston Camera 



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