29 t INDEX. 
PAGE. PAGE. 
Systems of Mechanical Units.... 34 Tribally Organized Societies, 
Systems of recording field notes 19 Study (Of. coasneeasaeoeecte eaeee 155 
Trilobitic fauna of Cumberland 
Tale Deposits near Gouverneur, Head .. ....22sttcgesenes eoetioren 21 
NY. (Orniginsoly) a. e-ee te 154 
Thalassema, History of the...... 
Achromatic Structures....... 163 
The Egg Centrosome........ paces los 
The Sperm Centrosome ........ 168 
The Cleavage-Figure............ 170 
Effect of Fixing Agents......... 172 
Literature referred to............ 175 
Description of Plates............ 175 
The Etymology of Italian Andare 
and related words............. 271 
“The Tradition of the Case- 
Forms in Chaucer’s Noun.’ 271 
Titanotherium and Metamyodon 
Skeletons in Amer. Mus.... 40 
Titanotheres in Amer. Mus...... 66 
Trap-Dikes in the Adirondacks, 
Pre-Cambrian and Post-Or- 
GoviciaMs sess 248 
Inbroduct Onis. ..seseseeee nace es .. 248 
Present Rock Classification.... 248 
Proposed change in Classifi- 
CALIONY ese -geceaeeseentlsseeeee 249 
"The, Dikes .Jsiatidesssddoosstoee ce = 249 
Distrib wglonicsse-eqsceet- tesa 250 
Scarcity north of Adirondacks 251 
SUMAN ALY ricdcens svete doe ecettcanaee 252 
Trap Dikes of Lake Champlain.. 20 
Mreasurer’SREpPOnt 2.2... s0.s-<e0e 130 
(DISDUTSEMeENts! %.220) jae eese see 131 
IRG@CENPURE .c ces cneee c- sseeit essence 130 
Triassic Coals, Metamorphism 
by Diabase Dikes at Egypt, 
INGAG Gai. ader eee nane desea odeet 105 
Trip through Marble Quarries of 
Western New England and 
Bastern. .N<Winise cessor 188 
Van Ingen, Gilbert, elected 
MNLEMUDED sdaeee tects ceases aes 124 
Van Nardroff, E. R., elected 
MEM DEL ssaecse ee ees eee 63 
Vabration, of aicord.<...2--s22-c.es= 135 
Visceral Anatomy of the follow- 
ing: 
Myrmecaphaga jubata............ 98 
Tamandua bivittata .........0.06.+ 98 
Arctopithecus didactylus.......... 98 
Dadypus sexcinctus ........4...000+ 98 
Tatusia novemcincta........+..0.+ 98 
Manis longicaudata .............4+ 98 
Vivisection in the District of 
Columbia, Resolutions on... 272 
Vocal Chords in Voice Produc- 
GION; “A CHON Ole...) 5. sees 2 
Photographs of, in Action...... 2 
Wotes of ‘Thanks......5..::000«vees 133 
Weston, Th., elected. member.... 147 
White, Thaddeus R., elected 
MEMDEL oc) -csacdacsmete cress 147 
Whiton, Louis C., elected mem- 
DEES; .a... 00 ocucaces cacseaeeeeneeer 147 
X-Rays, Experiments.............. 136 
Zine and Lead Mines in South- 
western Virginia.............. 61 
