- 
~~ 
SCIENCE —- 
aN 
Zee ei OE Gr) © HW AlecIN TASTE, 
DEVOTED TO THE ADVANCEMENT OF SCIENCE. 
= ITORIAL COMMITTEE: S. NEWcomsB, Mathematics; R. 8. WooDWARD, Mechanics; E. C. PICKERING, 
Astronomy; T. C. MENDENHALL, Physics; R. H. THuRSTON, Engineering; IRA REMSEN, Chemistry; 
J. LE ContE, Geology; W. M. Davis, Physiography; O. C. MARrsu, Paleontology; W. K. Brooks, 
C. HART MERRIAM, Zoology; S. H. ScUDDER, Entomology; C. E. BrssEy, N. L. BRITTON, 
Botany; Henry F. OsBoRN, General Biology; C. S. Minor, Embryology, Histology; 
H. P. BowbitcH, Physiology; J. S. BILLines, Hygiene; J. MCKEEN CATTELL, 
Psychology; DANIEL G. BRINTON, J. W. PowELL, Anthropology. 
NEW SERIES. VOLUME VI. 
JULY -DECEMBER, 1897. 
NEW YORK 
THE MACMILLAN COMPANY 
1897 
