INDEX. 



335 



Tubularia ramea, 160 

 Tulley's achromatic, 45 

 Turacus albocristatus, 254 

 Turntables, 276-283 

 Turntable, Armstrong's, 279 



Aylward's, 283 



Bridgman's, 277 



Butterworth's, 278 



Congress, 280 



Cox's, 278 



Dunning's, 282 



Kinne's, 279 



Matthews', 276 



Rolfe's, 281 



Shadbolt's, 276 



Zentmayer's, 277 



Turpentine, 314 

 bleaching in, 299 



U. 



UNDER-CORRECTED lenses, 106 

 Uni axial crystals, rings in, 247 

 Useless paraphernalia, 4 

 Usnea barbata, 150 

 Ustilago segetum, 144 



V. 



VALENTINE'S knife, 183 



Maddox's form of, 183 



Vallisneria spiralis, 116 

 Varnish cells, 284 

 Varnishes, 321-323 



Vegetable matter, disintegration of, 

 180 



dissection of, 179 



preparations, 157 



section-cutting, 189 



Vertical illuminators, 75 

 Virtual images, 6 

 Vivarium, 149 

 Volvox globator, 132 



W. 



WALKING-STICK, telescopic, 128 

 Wash bottle, 270 

 Wasp, sting of, 176 

 Watchmaker's lenses, 4 

 Water beetle, trachea of, 109 

 Watson's patent stand, 20 

 Wax cells, 284 

 Wedge cell, Sorby's, 251 

 Wenham's binocular prism, 32 



high power, 33 



diatom illuminator, 72, 1 19 



objectives, new formula for, 52 



reflex illuminators, 71 



Wet and dry plates, 213 



Whalebone clip, 299 



Wheat starch, mounting in dammar, 



301 



Whisker, cat's, 294 

 White cloud illuminator, 96 

 White zinc varnish, 323 

 Wide apertures, value of, 123 

 Wollaston's doublets, 45 

 Woodward's prism, 73 

 Wood, photographing on, 227 



sections, 158 (FRONTISPIECE) 



Working distance, 103 

 microscope, 38 



Y. 



YELLOW ringing varnish, 323 



Z. 



ZENTMAYER'S mechanical finger, 293 

 Zeiss's objectives, 55 

 Zincs for electric light battery, 218 

 Zoophyte, 160 



troughs, 85 



Zoophytes, preserving, 161 



LONDON : PRINTED BY WM. CLOWES AND SONS, LIMITED, STAMFORD STREET 

 AND CHARING CROSS. 



