June, '17] FREEBORN: RICE FIELDS AND MALARIA 359 



4. Larvicides or predaceous animals are of little use in the rice fields. 



5. Organized quinine prophylaxis and treatment together with anti- 

 mosquito precautions would decrease materially the incidence of 

 malaria. 



Bibliography 



Barber, M. A.; Raqtjel, Alfonso; Guzman, Ariston; and Rosa, A. P. Malaria 

 in the Philippine Islands. Phil. Jour, of Sci., vol. X, No. 3, Sec. B, pp. 177-247. 



Beyer, G. E.; Pothier, O. L.; Couret, M.; and Lemann, I. I. Bionomics, ex- 

 perunental investigations with Bacillus sanarelU and experimental investiga- 

 tions with malaria in connection with the mosquitoes of New Orleans. Report 

 of the Mosquito Commission to the Orleans Parish Med. Soc. New Orleans 

 Med. & Surg. Jour., vol. 54, pp. 419-480. 



Darling, S. T. Studies in relation to Malaria. Reprint of Dept. of Sanitation, 

 Isthmian Canal Commission. 



Herms, W. B. Medical and Veterinary Entomology. Macmillan Company, 1915. 



HiRSCHBERG, L. K. An Anopheles mosquito which does not transmit malaria. 

 BuU. Johns Hopkins Hospital, vol. 15, No. 155, pp. 53-56. 



Kendrick, W. H. Malaria and Rice Cultivation. Proc. of All-India San. Conf., 

 Lucknow, vol. IV, pp. 64-70. 



Majoribanks, J. L. Report on certain features of malaria in the island of Salsette. 

 ' Proc. of Third All-India San. Conf., Lucknow, vol. IV, p. 23. 



MiTZMAiN, M. B. The transmission of tertian malaria by Anopheles punctipennis 

 Say. U. S. Public Health Reports, vol. 31, No. 19, May 12, 1916. 



VoN EzDORF, R. H. Anophehne Surveys. Reprint No. 272, Pub. Health Reports. 

 April 30, 1915. 



Watson. Cited by Barber et al., loc. cit. 



Chairman A. W. Morrill : It will probably be best to wait and 

 •discuss this paper along with the next one which is to be read by Prof. 

 W. B. Herms. 



A STATE-WIDE MALARIA-MOSQUITO SURVEY OF 

 CALIFORNIA 



By William B. Herms, Associate Professor of Parasitology, University of California, 

 and Consulting Parasitologist, of the California State Board of Health 



The great state of California, bathed for many miles by the waters 

 of the Pacific Ocean, favored by a semi-tropical climate, well deserves 

 to be called the nation's health resort and playground, but while Bur- 

 bank has shown how the spine-covered cactus may be made smooth to 

 the touch, and we now have under cultivation many acres of spineless 

 cactus, there still thrives in many parts of the state the festive mos- 

 quito, not yet shorn of its beak nor devoid of its ability to transmit 

 malaria. Evidenced by letters in my possession there are some per- 



