Contents of Volumes VI and VII 
Volume VI contains two numbers; Volume VII has but one number. 
PUSTaiclisiventeSsqorm SClencegn wr sre eer ls eee 
Ancestors of Our Whales ...... Bran at: Often Gilbey 
Celestial Meastires tae samen: oa Ory ete aes er ioe 
Constitution vor AWViatter- eae cee eos Bee eg ee ree 
Corporation, Officers, Fellows and Members....... WI, 27? 
DiatOmI sh Noe ee ty eta Neen eae? earaee Sarah P. Monks 
Environment. Its Effect on Butterfly Forms.../J. R. Haskin 
Juglans Californica—Its Distribution...Prof. W. L. Jepson 
MondwiGelvantntaper se ee ane eae Geshe Wm. H. Kmght 
Marsmaneclimitabired oN Onl dere seca ae Wm. H. Kimght 
EINOHOIOIN Oe WMS SUN bs odsecsess0a0 Prof. George E. Hale 
IZaiVSES Olt SINGOWNNS SWS So o56500550- Prof. J. F. Lanneau 
Porcupine, Grouse and Sparrow ......... Dr. A. Davidson 
Proceedings of the Academy SD pepe cop eee ese eee VEE TON ZO. 
Re ports of Sectionss «aie cria take ae WIE Bay? 2a 8 
Some Ground-Dwelling Arachnida ............ Je (Eo ILE) 
Scarier ner Circles reesei se eee eee R. H. Chittenden 
athe Changes OurmeWicedsuns sence ere Dr. A, Davidson 
ie enctheora|mpitensse | aye peer renee R. H. Chittenden 
sthewPlanet. |iiupitetajeeeie ere ee. Holdridge O. Collins 
hemG@y cles Mhcony: Om Distunbancesser ei eee ae 
Vie 
VI, 
VI, 
