Index to Volume XVI. 



Page 



Agrostis alba ^■+ 



Aronaria luiltalli 1"+ 



biological Survey in Southern California 23 



Callitriche longii)e<lunculata .""l 



Castono])sis cliryso])liylla 14 



Ceani >ilnis arlioreus 46 



Ceaiiotlnis s])inosus 46 



Ceanothus vestitus ' 46 



Ceanothus s(M-iedatns 46 



Clou:l Formations in Havana 9 



Collinsia monticola 13 



Crepis nana 13 



Deschampsia gracilis 51 



Draba vestita 14 



Fremontodendron Mexicanum 50 



Isoetes melanopoda pallida 51 



Lepidium draba 14 



Lilac Payne's Hybrid 45 



Loefflingia squarrosa 14 



Mark Twain 29 



Xavarettia prostrata ; 51 



Phalaris paradoxa 14 



Pilularia americana 51 



Pre-Historic Use of Bitumen in Southern California 41 



Psilocarphus globiferus 51 



Red Hill Pools 51 



Rhamnus Catalinae 47 



Telescope Alt. Wilson : 19 



White Ants 48 



World's Alost Powerful Telescope 53 



