193 



THE MICROSCOPE. 



Be 



c. 



Spruce, section of stem, 8i 

 Stentor, where to find, 60 

 Stokes vs. Cunningham, 153 

 Stone, building, microscopy, 14 

 Sycamore, section of stem, 20 

 Sj'uapta, mounting, 62 



Tapeworm, sections, 144 

 Tempere on aquariums, 177 

 Textile fibres, literature, 10 

 Tin crystals, 61 

 Tourmalin, how to obtain, 104 

 Trichina, staining and mounting, 

 II 

 cyst, 130 

 Tube length, 108 

 Tyhoid fever, 120, 179 



Uncinula necator, 76 



Urinary analysis, literature, 154 



Urine, spermatozoa, 44 



Vegetable sections with crystals, 

 in glycerin, 60 

 to prevent turning dark, 152 



Walker Prize in natural history, 



151 

 Water, micro-organisms, 106 

 Wenham's stand, 182 

 ^Yhite's sections, 15, 113 

 Willson. L. W., 11, 30, 45, 61, 76, 



93, 109, 128, 143, 154, 172 

 Writing, examined, 30 



LIST OF ILLUSTRATIONS. 



Disc of Ophiocoma i 



Scalariform Ducts •. 2 



How to Sharpen Knives 5> 6 



Section of Stem of Beach 17 



" " '• " Ironwood 19 



" " " " Sycamore 20 



Twenty Kinds of Bacteria that Produce Disease 33 



Tyndall's Sterilizing Apparatus 41 



New Forms of Radiolaria 49, 50 



Red Snow 51 



Anatomy of the Smelt 65 



Section of Stem of Spruce 81 



Some New Desmids 97 



Vegetable Sections.. 113! ^^4 



The Crab Louse 129 



Cyst of Triphina 130 



A New Dictyosphserium 145 



Shufeldt's Photo-micrographic Outfit 156 



The Composition of Grains of Sand 161 



The Excelsior Microscope i75 



