( XXV ) 



LIST OF WOODCUTS. 



FAGB 



Hofmann's Camera Liicida (4 figs.) No. 1 21 



Swift's Camera Lucida .. „ 23 



Eussell's Camera Lucida (2 figs.) „ 25 



Diagram of Stephenson's Catoptric Immersion Illuminator .... „ 36 



Prazmowski's Heliostat „ 4:4 



Weber Slide „ 56 



Measure for Covering-glass (8 figs.) ,, 65 



Improvements in Object-glasses » 76 



Figures illustrating Mr. W. J. Sollas' paper on Dactylocalyx pumiceus 



(Stntchbury) (4 figs.) No. 2 124-33 



A New Rotifer — Anurcca longispina „ 158 



Sponge Spicules „ 178 



Lasaulx' Apparatus for determining the Angle of the Optic Axes of 



Crystals with the Microscope (2 figs.) „ 192-3 



Artificial Crystals of Gold „ 194 



Swinging Tailpiece for Microscopes No. 3 320 



Seller's Mechanical Microtome „ 329 



Hoggan's Histological Ring No. 4 357 



Pt'cfa/wft (Huilson) and i^i?^ar<Ara (Schmarda) (2 figs.) „ 386 



Tolles' Illuminating Traverse Lens „ 388 



Phin's Contrivance for holding Objects beneath the Stage .. .. „ 466 



Fletcher's Microtome (5 figs.) „ 407-8 



Rogers' Electrical Mounting Table (3 figs.) „ 4G9-70 



English Microscope for Students of Mineralogy and Petrology 



(Rutley's) „ 471 



Diagrams illustrating Dr. Fripp's paper on the Theory of Illumi- 

 nating Apparatus (9 figs.) No. 5 510-24 



Snare of Epcira basilica „ 560 



Algse from Lake Nyassa (3 figs.) „ 608 



Rolfe's Improved Turntables (2 figs.) „ 618 



Formation of the Paraboloid as an Illuminator for the Microscope 



(3 figs.) „ 620-1 



Rotating Clips for Cheap Microscopes „ 624 



Figures illustrating Dr. Ord's paper on Brownian Movements (2 figs.) No. 6 659 

 "Microscope nouveau grand modele renverse' avcc miroir argente " 



(Nachet) „ 766 



Portable Demonstration Microscope (Nachet) (2 figs.) „ 767 



Roy Microtome „ 769 



Woodward's Oblique Illuminator (2 figs.) „ 770-2 



