Fossil Leaf of Hausmannia, . . . 100 

 Fossil Wood, Arizona, Descrip- 

 tion of, 198, 210 



, Identification of, 220 



, Lenticular Mark- 

 ings in, 220 



FouLKE. Sara Gwendolen, 

 Chilomonas liaramfecium, ... 95 



, Trachelius ovum, ; 97 



Fresh- Water Sponge, Observa- 

 tions on 46 



Fungus {Torruhia), Caterpillar, 



from New Zealand, 89, 90 



, Torruhia Ravenelii, 91 



, militaris, 91 



, clavulata 92 



Growths on Cover-Glass, 



How Prevented, 191 



Fusulina cylindrica, 200 



Geneva, Lake, Blueness of 

 Waters of. How Caused, .... 198 



Hairs, Branched, of Leucpohyl- 

 lum Texanum, 46 



Hanamau Filter Wash-Bottle, .125 



Hausmannia, Fossil Leaf of, ..100 



Heteromeyenia Ryderi (a Fresh- 

 Water Sponge), 37 



, Dimensions of Spic- 

 ules of, 104 



Hyatt, J. D., Compound Eyes 

 and Multiple Images, 33 



Hydrogen Peroxide as a Bleach- 

 ing Agent, 22 



Identification of Arizona Fossil 

 Wood, 220 



Illumination by Aid of Air- 

 Bubbles, 203 



, Electrical, in Microsco- 

 py ,...1, 19,22 



, Microscopical, Dynamo- 

 Electric Machines for, 156 



Index to Articles of Interest to 

 Microscopists, 29, 48, 77, 106, 



127, 160, 194, 205. 222 



Infusoria, Artificial Division of, 163 



Infusorian, A New Symbiotic, 152 



JuLiEN, Alexis A., the Sealed 

 Flasks of Crystal, 129 



. A Phosphorescent Organ- 

 ism from the Surf at Ocean 

 Beach. N. J., 214 



Lacimdaria socialis, Note on,. 218 



Lenticular Markings in Arizona 

 Fossil Wood. See " Identifi- 

 cation of Arizona Fossil 

 Wood," and " Chalcedonv 

 Park," 220', 210 



of Various Conifera? 



Compared, 218 



Leucophyllum Texanum, 

 Branched Hairs of, 46 



Leucophrys eamrginata 153 



Limtdus Polyphemus, Eggs of, 47 

 Lobelia syphilitica, Cross-Fer- 

 tilizing Apparatus of, 201 



LoCKWOOD, Samuel, Hetero- 

 meyenia Ryderi (a Fresh- 

 Water Sponge), 37 



, The Life of an Oyster, 60 



, Feather Crystals of Uric 



Acid from a Caterpillar, 217 



Medullary Rays of Tamarack, 27 

 Meloe anyusticollis, Triungulin 



Larva of 155 



Micrometry and Blood-Corpus- 

 cles, 211 



Micro-Organisms of Pneumo- 



enteritis (Swine Plague), . .41, 42 

 Microscope, The, in the Scliool- 



Room, 110 



, Microscopic, Microscopi- 

 cal, 209 



Lenses, The Proper Care 



and Use of, 113 



, Care of, 123 



, The Best, Only 224 



Microscopic Objects, Exhibi- 

 tion of, 72 



Microscoi^y, Professional, 210 



Miscellanea :— 

 The Study of Nature a Soui'ce 



of Happiness, 28 



Starch in Leaves, 28 



The Minuteness of Sporules,.. 29 

 Earliest Observation of Mul- 

 tiple Images, 53 



Eyes of Tabanus, 52 



Royal Microscopical Society, 



Annual Meeting, 1885, 80 



The Working Session of the 

 American Society of Micro- 

 scopists, 109, 111 



The Algo-Fungal-Lichen Hy- 

 pothesis, 109 



The Microscope in the School- 

 Room 110 



Septic Organisms,. 110 



The American Society of Mi- 

 croscopists, 162 



Leucophrys emarginata, Note 



on, 162 



Amphipleura pellucida and 



the Diffraction Theorj',... .163 

 " Omnis Nucleus e Nucleo.".163 

 Ailificial Division of Infu- 

 soria, 163 



Choice of Objectives and 



Oculars 164 



Microscope, Microscopic, Mi- 

 croscopical , 209 



Mechanical Self-Division of 

 Stentor 209 



