INDEX. 



PAGK. 



Adiantum pedatutn 140 



Alcohol, dehydrating agent for 86 



Methyl , 86 



Ethyl .... = « 88 



Butyl , 89 



Amyl 89 



Ames , early flowering plants of , . o ., 179 



Amyl alcohol , 89 



Analyses of clays for paving brick . „ 6J. 



Deep well waters , 63 



Shallow well waters 81 



Sioux City waters 93-100 



Aspidium acrostichoides . 146 



cristatutn , 14.5 



Goldieanunt , „ 146 



lonchitis , . , 147 



marg inale , , 146 



spinulosum , , 145 



tkelypteris 145 



Asplenhim angustifolium c . = 142 



Ftlix-foetnina 143 



thelvpter»ides 1 43 



Associate members , 10 



Azolla Carolhiianum , ...o. 151 



Bates, CO., analyses of certain clays ., . , 61 



Bay-heads „ = . 190 



Black Sea, recent uprisings of shores of , . „ ,•,,,...,... 103 



Boehm, W. M., a ruling engine for making zone plates, , 181 



Botrvchiutn virginanum „ 150 



Biological sciences... .,....., ....-^,. 3i 



station. University of Montana ....„....,,.,..,... 122 



Bromides, double ....... 127 



Brown , J . C . , chemical composition of sewage c .,. .^ ..... . 70 



Butyl alcohol ....,.,. 89 



Cable switch board .,.,..,.,..,..,,... 39 



Calcium carbide , as dehydrating agent , . . 86 



Camptosorus rhizophyllus , .„..,. 143 



Camera table ,. ,..<,.. . 40 



Capital City Brick and Tile Works , , . 62 



Carboniferous, Lower ...,..- ». .... .. 107 



Cheilanthcs lanuginosa , , , , . . , ,,.... 141 



lomentosa , , 141 



17TAS (241) 



