PUBLISHED MONTHLY FROM OCTOBER TO MAY 

 INCLUSIVE, BY THE AMERICAN MUSEUM OF 

 NATURAL HISTORY, NEW YORK CITY. TERMS: 

 ONE DOLLAR AND A HALF PER YEAR, TWENTY 

 CENTS PER COPY. ENTERED AS SECOND- 

 CLASS MATTER FEBRUARY 2-.. 1917, AT THE 

 POST OFFICE AT NEW YORK CITY, NEW 

 YORK, UNDER THE ACT OF AUGUST 24, 1912 



