IV 
Contents 
Page. 
Brillantes, Concha. The disease-carrier problem in the Philippine 
Islands 109 
Rustia, G. Autoinfection, so-called, during the puerperium 119 
De Leon, W. Pathological findings in three cases of encephalitis 
lethargica 125 
No. 2, August, 1920 
[Issued December 21, 1920.] 
Carsten, H. J. Millable cane in the Philippine Islands 133 
One plate. 
Morrison, Harold. The nondiaspine Coccidae of the Philippine Is- 
lands, with descriptions of apparently new species 147 
One plate and forty text figures. 
Karny, H. Some Thysanoptera from the Philippine Islands 203 
Four text figures. 
Adriano, Felipe T. A volumetric method for the determination of 
lactose by alkaline potassium permanganate 213 
Cockerell, T. D. A. Some bees from Sandakan, Borneo 221 
Felt, E. P. New Philippine gall midges 231 
Reviews 235 
No. 3, September, 1920 
[Issued January 12, 1921.] 
Merrill, Elmer D. New or noteworthy Philippine plants, XVI 239 
No. 4, October, 1920 
[Issued February 14, 1921.] 
Lee, H. Atherton. Action of some fungicides on the citrus-canker 
organism 325 
Gahan, A. B. New reared parasitic Hymenoptera from the Philip- 
pines 343 
Crawford, D. L. The Psyllidae of Borneo 353 
One plate. 
Reinking, Otto A. Higher Basidiomycetes from the Philippines and 
their hosts, IV 363 
Merrill, Elmer D. Myrmeconauclea, a new genus of rubiaceous 
plants from Palawan and Borneo 375 
Merrill, Elmer D. Comments on Cook’s theory as to the American 
origin and prehistoric Polynesian distribution of certain economic 
plants, especially Hibiscus tiliaceus Linnaeus 377 
Chatterjee, Gopal Chandra. An atypical Amoeba causing dysen- 
teric lesions 385 
Three colored plates. 
Carsten, H. J. The utilization of waste molasses in the Philippine 
Islands, with special reference to the haciendas of Negros 395 
