CONTENTS. 



XXVll 



PAGE 



Microscopists at Dinner , .. Parti 145 



Photographing Microscopic Objects ,, 145 



Simple Eye-piece Indicator „ 146 



Drawing from the Microscope „ 146 



Dr. Holmes and the Microscope „ 146 



Fakir and his little Fakes „ 146 



Astigmatic Eye-piece „ 146 



Simple Revolving Table „ 147 



Microscope in Medical Gynecology ,, 147 



Fasoldfs Micrometer „ 148 



The President's Address Part 2 173 



Ahrens's Erecting Microscope {Fig. 28) „ 278 



Bulloch's Improved " Biological " Microscope „ 279 



Cox's Microscope mith Concentric Movements {Fig. 29) .. „ 279 



Geneva Company's Microscope (Figs, 30 and 31) . . . . „ 281 



" Giant Electric Microscope " „ 282 



ToUes's Student's Microscope {Fig. 32) „ 283 



Winter's, Harris's, or Rubergall's Revolver Microsco2?e . . „ 284 



Geneva Go's Nose-piece Adapters {Fig, 33) „ 284 



Zentmayer's Nose-piece {Fig. 34) „ 285 



Tornebohm's Universal Stage Indicator „ 285 



Stokes's Fish-trough {Figs. 35 and 36) „ 286 



Nelson-Mayall Lamp {Fig.'dl) „ 286 



Standard Micrometer Scale „ 287 



Microscopic Test-Ohjects {Figs, a and 3^) „ 288 



Aperture and Resolution {Figs, ^0 and ^1) „ 289 



The Future of the Microscope „ 291 



Webb's'' Optics without Mathematics" ,, 300 



Bulloch's Nose-piece „ 300 



Karop's Table for Microscopical Purposes „ 301 



Drawing with the Microscope „ 301 



Substitute for a Revolving Table 302 



'' Congress Nose-piece" „ 302 



" Microscopists " and the iDOsition of the Microscope .. .. „ 302 



Revolving Table „ 302 



Penny's Proposed Eye-piece , ., .. „ 302 



New Fluid of great specific gravity, large index of refrac- 

 tion, and of great dispersion ,, 303 



On the Estimation of Aperture in the Microscope {Plate VII.) Part 3 337 

 Note on the Proper Definition of the Amplifying Power of 



a Zens or Lens-system {Fig. 4:8) „ 348 



Hensoldt's and Schmidt's simplified Reading Microscopes .. „ 436 



Geneva Co.'s Travelling Microscope {Figs. 51 and 52) ,, „ 437 

 Reichert's Microscope with modified Abbe Condenser 



{Figs. 53 and 54:) „ 437 



Reichert's Polarization Microscope {Fig. 55) „ 440 



Reinke's Microscope for Observing the Growth of Plants 



{Fig. 56) „ 441 



Tetlow's Toilet-bottle Microscope {Fig. 57) „ 442 



Griffith's Multiple Eye-piece {Fig. 58) „ 443 



Francotto's Camera Lucida . . . . 444 



