334 
Index. 
“Architecture and Mechanism of the 
Human Brain " (Spitzka) 176 
“Arctic America, Natural History of" 
(Kumlien) 85 
Arctic Winter, the Duration of 314 
Arcturus, Spectrum of 259 
Argyll, the Duke of, Note by, on the 
Fourth State of Matter 33 
Ariel 165 
Arietis , e 236 
“ Arrangement of the Families of Fish- 
es ” (Gill) 308 
Artemis , When Discovered 283 
Articulate Language, Discovery of the 
Seat of 93 
Artificial Diamonds 12 
Artificial Mineral Water, Constitution 
of 139 
Ascaris lumbricoidcs 303 
Ascococcus Bilrothii 12 
“ A Short Course in Qualitative Chemi- 
cal Analysis " (Appleton) 212 
“A Simple and Expeditious Method of 
Investigating all the Division Errors 
of a Meridian Circle ” (Rogers) in 
“ A Simple Device for Projecting Vibra- 
tions of a Liquid Film without 
a lens ” (Carhart) 112 
Association of Geologists, and Natural- 
ists, Transactions of the 44 
Asterias Tanneri 235 
Asteroid Discovered by Peters 317 
Asteroids, List of the, Discovered by 
Prof. James C. Watson 283 
Asterolampra concinna 222 
Asteromphalus Buchii 222 
Asterostoma 144 
Astigmatism in theEyes of Microscopists 8 
Astronomers, The Education of 
Young 82, 102 
Astronomical Memoranda 263, 295, 330 
Astronomical Observation, Method of 
Encouraging 195 
Astronomical Observations, Mountain 
Sites for 152 
Astronomical Observatory, Mt. Hamil- 
ton as a Site for an 158 
Astronomical Record, Dreyer’s 77 
Astronomical Work, American 80, 90 
Astronomical Work at the Paris Obser- 
vatory 82 
Astronomy, Address on, by Asaph Hall. 123 
Astronomy in the United States 250 
Astrophytidce 147 
Astropyga 147 
“ A Supplement to the Article on Cal- 
careous Crystals in Amphibia, bv 
Prof. Bolton, Trinity College " 
(Gage) * 319 
Atacamite , Researches on 260 
Ate/es, Brain of 327, 329 
Athor, When Discovered 283 
Atmosphere, Height of 84 
Atmospheric Electricity 91, 271 
Atoms and Molecules, On the Absolute 
Invisibility of 150 
Audi phone, A New, by Thomas 
Fletcher 48 
August Perseids, 1880, The. Edwin F. 
Sawyer 153 
Aulacodiscus crux 222 
Aurora and Zodiacal Light of May 2, 
1877, On the. Henry C. Lewis 151 
Autora, When Discovered 283 
“ A Useful Culture-Cell " (Sternberg).. 176 
Avicula speciosa 190 
Aviculopecten frag ills 190 
Bacillus amylobacter.. . .- 162 
Bacillaria paradoxa. H. L. Smith 7 
Bacteria, Factors in the “ Epizootic ” 
Disea'e 178 
Bacteria, Formation of Vinegar by 12 
Bacteria, Influence of the Galvanic Cur- 
rent on 224 
Bacteria, Presence of, in the Air 77 
Bacteria, Origin of 189 
Bacteria, The Cause of the “ Yellows " 
of the Peach Tree 192 
Bacterium mycoderma 12 
Bascanion constrictor, Voracity of.. .... 51 
Bausch and Lomb, Microscopes of. ... . 162 
“ Bedford Catalogue” The 213 
Bee, The Endocranium and Maxillary 
Suspensorium of the 136 
Beer, Detection of Picric Acid in 296 
Beet Sap, Organisms in 12 
Behavior of Carbonic Acid with Ness- 
ler's Reagent and Ammonia 296 
Belgian Diatoms, A Synopsis of 23 
Bell Telephone, The 119 
Beluga catodon 215 
Benefactions, Educational, in the Unit- 
ed States 292 
Bernardinite 89 
Bernardinite, Its Nature and Origin. 
J. M. Silliman 81 
Biddulphia Tuomeyii 222 
Biela's Comet, Period of 258 
Binocular Eye-piece, A New 284 
Biological Society of Paris 59 
Biology, Definition of 312 
Bird Furniture. J. B. Holder 61, 223 
Bird Perches and Stands 61 
Birds, Anatomy of the Tongue in 234 
Birds, Instrumental Substitute for Sing- 
ing in 24 
Birds, The Greene Smith Collection of, 51, 77 
Birds, The Mechanism of the Flight ot. 23 
Birds, The Maximilian Collection of. 61, 223 
Birds of North America, The Elliott 
Collection of 61, 223 
Bismuth, Occurrence of 228 
Bismuth, Thermo-Electric Power of. . . 150 
Bisulphide of Carbon, Value of, in Mi- 
croscopical Definition 29 
Bituminous Coal Beds 89, 98, 100 
“ Black ” Expedition 4 
“Black Knot of Plum and Cherry 
Trees ” (Farlow) 81 
Black Snake, Bascanion constrictor. Vo- 
racity of 51 
Blood Corpuscles, Human, Possibility 
of Identifying 10 
Blood, Fresh, Difficulty in Mounting.. 248 
Blood, Human, Characteristic Distinc- 
tion Between, and That of Other 
Animals 296 
“ Blow-pipe Analysis " (Ross) 47 
Blow-pipe, Electrical, of M. Jamin 328 
Bodecker's Method of Detecting Albu- 
men in the Urine 307 
Bolide, A Fine 236 
“ Bone Caves of Pennsylvania” (Leidy) 332 
Boric Acid, Complex Acids Contain- 
ing 307 
Boro-Deci-Tungstic Acid and Its So- 
dium Salts 272 
Boro-Molybdic Acid 307 
Boro-Tungstic Acid 307 
Botanical Gardens at Antwerp 23 
Botanical Microscopical Slides of Jas. 
W. Queen & Co 248 
Botanical Society of London 34 
“ Botany for High Schools and Col- 
leges” (Bessey) 248 
Botany of Manhattan Square 320 
Bolkriocidaris 147 
Brachiopods, Observations on the 151 
Brahe's, Tycho, New Star 274 
Brain and Spinal Cord ot the Iguana. . 73 
Brain, Anthropoid, A Remarkable Pe- 
culiarity of 25 
“ Brain Fag” 8 
Brain, Function of the 115 
Brain, Human 25 
Brain, Human, Architecture and Me- 
chanism of 176 
Brain, Human, The Study of the 4 
Brain, Icihyopsidian, The Objects and 
Methods of a Study of the 251 
Brain of the Chimpanzee 25, 329 
Brain of the Orang Outang. . . 25, 326, 329 
Brain, The, of the Orang. FI. C. Chap- 
man 326 
Brake, Magnetic Railway 12 
Bramwell, Mr., On the Perkins System. 95 
Brandon Period, The Iron Ores of the. 164 
Breakfast Beverages 75 
Brissopsis 145, 147 
Brissus 145, 146, 147 
British Association for Electrical Science 241 
British Association for the Advancement 
of Science, 1880 109, 172 
“ British Diatomaceae” (Smith) 23 
“British Thoughts and Thinkers" 
(Morris) 260 
Broca, Dr. Paul, Death of 93 
Bromine, Use of, in the Analysis of the 
Sulphides 296 
Bronze, Electrified, Adhesive Power of. 84 
Bronzite in Peckhamite 92 
Brorsen’s Comet, Period of 258 
Brush Dynamo-Machine, The 170, 304 
Buffalo Microscpical Club 10 
Building Stones, Capability of, for 
Standing Heat 254 
Bunsen Flame, Maximum Temperature 
of 24 
Bunsen's Pile 92 
Butter, Amount of, in Milk 12 
Butter, Ancient, Analysis of Two Sam- 
ples of 12 
Butter from an Egyptian Tomb 12 
Butterflies, Broods of 32 
Butterflies, Fossil 44 
C adulus pandionis 235 
Caffeine 75- 
Calcite 96 
Calendula officinalis 307 
Calicarpo Americana 264 
Calliostoma Bairdii 235 
Callisection 210 
Calliteuthis reversa 233 
Callocephalus vitulinus 215 
Calorimeter (Rosetti) 24 
“ Callotte Diaphragm” 284 
" Cambota” ( Callickthys asper) 317 
Canada Balsam for Mounting Diatoms. 29 
Canes, Sugar, Grown in the United 
States 78 
Canidse, Miocene 303 
Capella 284 
Capillarity, Nature of 116 
Callickthys asper. 317 
Carbon, Combustion of, at Low Tem- 
peratures 96 
Carbon, Presence of the Vapor of, in 
the Solar Atmosphere 107 
Carbonic Acid, Behavior of, with Ness- 
ler’s Reagent and Ammonia 296 
Carbonic Acid Gas in the Air, Effect of, 
upon Crops 12 
" Carcinological Notes, II., Revision of 
the Gelasimi" (Kingsley) 332 
“ Carcinological Notes, III., Revision 
of the Genus, Ocypoda," (Kingslev) 332 
“ Carcinological Notes, IV., Synopsis 
of the Grapsidce " (Kingsley) 332 
Cardiaster , 144 
Carex 306 
Carica papaya 117 
Carpenter, Dr., Visit of, to America. ... 7 
Carya glabra 264 
Cassidulus 144 
Cassiope tetragona 101 
Cassiopeids 154 
' Catalogue of the Diatomaceas ” (Hab- 
irshaw) 224 
1 Catalogue of the Diptera of the United 
States” (Osten-Sacken) 80 
Catalpa bignonioides 223 
Catalpa Speciosa 223 
Catopygus 144 
Cat, The Brain of the . 4, 49 
Cause of the Acid Reaction of Animal 
Tissues after Death 188 
Cause of the Variations of the Fixed 
Points of Thermometers 224 
Causes which Determine the Progres- 
sive Movement of Storms. Elias 
Loomis 328 
Caves in Japan. Edward S. Morse 163 
Cebus , Brain of 329 
Cell, A New, for Opaque Objects 209 
Cells for Microscopical Preparations. . . 74 
Centauri, a', a? 9 
Ceniauri, a, /? 223 
Central America, Expedition to, Under 
M. Charnay 47 
