cover image: Sonar Bangla  Resume  November 1929

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Sonar Bangla Resume November 1929

1929

The normal habitat of the topminnow ( Gambusia affinis ) the chief fish relied upon to combat mosquitoes in the United States is in the southern part of the country. [...] It is contrary to the California sttutes to import into the state any fish exceptwith the authority and permission of the California Fish and Game Commission owing to the fact that some species of fish introduced into the waters of California have proved harmful to other fish life and a menace to the valuable commercial fishing interests and to the waterfowl of the state. [...] His work chiefly a study of the use of fish against salt-water mosquitoes in marshes cosisted of making collections of native fish with records of tides the saltiness and temperature of the water tin resistance to salt concentrtion and observations on the stomach-contents and rate of growth of young fish. [...] The edges of the lake were cleared of vegitation and the actioof the Fundulus observed over a period of six weeks. [...] More propagandists at the diposal of the Central Society are required and if the Government of Bengal could make a grant to the Central Society for the emplo3 ment of additional propagandists the number of villages in the movement would no doubt very soon be considerably increased.
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Sonar Bangla Resume November 1929
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