SCIENCE 



A WEEKLY JOURNAL DEVOTED TO THE ADVANCEMENT OF SCIENCE, PUBLISH. 



ING THE OFFICIAL NOTICES AND PROCEEDINGS OF THE AMERICAN 



ASSOCIATION FOR THE ADVANCEMENT OF SCIENCE. 



NEW SERIES. VOLUME XXVIII. 



JULY-DECEMBER, 1908 



Z04rZ^^ 



NEW YORK 



THE SCIENCE PKESS 



1908 



