iv Contents 
ABRIOL, RUFINO. Correlation of death rates from certain diseases 
with certain economic and housing factors in the Philippine 
(OOS Ties [> Spears tots Css Uipiee seater MO eda AYES AER Seen ree oe ie ear Ree 
One text figure. 
WeLD, Lewis H. Notes on the Liopterinae with descriptions of 
new species from the Oriental Region (Hymenoptera, Cynipidae) 
One plate. 
No. 4, October, 1922 
[Issued October 18, 1922.] 
MERRILL, ELMER D. Diagnoses of Hainan plants..............002..2.00-220.00...+- 
Wirt, J. C. The effect of sulphur compounds on cement 
CoLE, Howarp Irvinc. The use of textile fibers in microscopic qual- 
itative chemical analysis. V. The detection of gold by means 
of stannous chloride-pyrogallol viscose-silk fibers.........................- 
Wirt, J. C. Some generalizations on the influence of substances on 
cement and concrete. Second paper. 
ALEXANDER, CHARLES P. New or little-known Tipulidae from the 
Philippines (Diptera) 
Voss, Epuarp. Indo-Malayische Rhynchitinen (Curculionidae). I, 
Siebenter Beitrag zur Kenntniss der Curculioniden = 
Drei textfiguren. 
No. 5, November, 1222 
[Issued November 15, 1922.] 
RoHwER, S. A. Philippine parasites of the family Trigonalidae........ 
TAKAHASHI, RYOICHI. Some PEMAR GAR ADDIUORC oon cede ec 
WEISE, J. Chrysomeliden der Philippinen, III 
MERRILL, ELMER D. Notes on the flora of southeastern China............ 
One text figure, 
No. 6, December, 1922 
[Issued December 23, 1922.] 
MERRILL, ELMER D. Additions to our knowledge of the Bornean flora 
MENDOZA-GUAZON, MARIA PAz. Schistosomiasis in the Philippine 
PSlends Gee 
Five plates. 
ScHULTZE, W. X. Beitrag zur Coleoptera Fauna der Philippinen... 
Vier Tafeln. 
Page. 
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