RT Journal Article SR Electronic T1 THE BRITISH GUIANA RESEARCH STATION OF THE NEW YORK ZOOLOGICAL SOCIETY JF Science JO Science FD American Association for the Advancement of Science SP 231 OP 231 DO 10.1126/science.49.1262.231 VO 49 IS 1262 YR 1919 UL http://science.sciencemag.org/content/49/1262/231.abstract AB