The Philippine journal of science . Raffles Place, Singapore, S, A. M. & J. FERGUSON, 19 Baillie Street, Colombo, Ceylon. (Entered at tlie post-office at Manila, P. I., as second-class matter.) A limited number of unbound copies of previous vplumesare available which may be secured from the Director ofPrinting at the following rates: Volume I, 1906 (not dividedinto sections), $5, United States currency; Supplement to Vol-ume I, $, United States currency; Volume I (withoutsupplement), $3, United States currency; all later volumesat current subscription prices. ?^i Vol. IV JULY, 19


The Philippine journal of science . Raffles Place, Singapore, S, A. M. & J. FERGUSON, 19 Baillie Street, Colombo, Ceylon. (Entered at tlie post-office at Manila, P. I., as second-class matter.) A limited number of unbound copies of previous vplumesare available which may be secured from the Director ofPrinting at the following rates: Volume I, 1906 (not dividedinto sections), $5, United States currency; Supplement to Vol-ume I, $, United States currency; Volume I (withoutsupplement), $3, United States currency; all later volumesat current subscription prices. ?^i Vol. IV JULY, 1909 THE PHILIPPINE No. 4 81 JOURNAL OF SCIENCE EDITED BY PAUL C. FREER, M. D., Ph. D. CO-EDITOR, RICHARD P. STRONG, Ph. B., M. D. WITH THE COOPERATION OP MERTON L. MILLER, Ph. D.; GEORGE F. RICHMOND W. D. SMITH, Ph. D.; ALVIN J. COX, Ph. D. RAYMOND F. BACON, Ph. D.; CHARLES S. BANKS, M. S H. D. GIBBS. B. S.; R. C. McGREGOR, A. B. PUBLISHED BY THE BUREAU OF SCIENCE OP THE GOVERNMENT OF THE PHILIPPINE ISLANDS A. GENERAL Science.


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Keywords: ., bookcentury1900, bookdecade1900, booksubjectscience, bookyear1906