THE JHAWAIIAN 



rORE8TER I AGRICULTURIST 



Vol. IX. JUNE, 1912. No. 6. 



The Forester acknowledges the receipt of a small library 

 in one package, of Proceedings of the California Academy of 

 Sciences, fourth series. There are four treatises bearing on 

 the expedition of the Academy to the Galapagos Islands, 

 1905-1906, in which, respectively, Francis X. Williams deals 

 with the butterflies and hawk-moths, John Van Denburgh with 

 the snakes, Alban Stewart with the botany, and Mr. Van Den- 

 burgh, again, with the geckos of the islands. Mr. Van Den- 

 burgh is also the author of "Notes of a Collection of Reptiles 

 from Southern California and Arizona;" James Perrin Smith, 

 of a pamphlet on the "Geologic Range of Miocene Invertebrate 

 Fossils of California," and Frank M. Anderson, of one con- 

 taining 146 ])agcs besides many interleaved illustrations on 

 "The Neocene Deposits of Kern River, California, and the 

 Temblor Basin." These documents will be a valuable addi- 

 tion to the scientific works in the library of the Territorial 

 Bureau of Agriculture and Forestry. 



Work conducted at the Pasteur Institute at Nha-Wang, 

 Cochin-China, has shown that the employment of a special 

 virus for producing epidemics among rats is not to be con- 

 sidered as a serious method of reducing the numbers of these 

 rodents. The disease produced by the virus shows at first .i 

 great activity, but the ultimate effect is to produce a race oi 

 rats that are immune to it. 



Somewhat peculiar results have followed the rubber boom 

 in vSingapore. More and more land has been planted in Para 

 rubber, until at the end of last year the area under cultiva- 

 tion was about 14,000 acres. The planting of this tree in every 

 corner, even in quite unsuitable localities and in small patches, 

 caused a remarkable diminution in the supply of vegetables, 

 fruit, poultry, and even pigs, many Chinese abandoning other 

 occupations to plant rubber. 



