H. D. SRIVASTAVA                                    241

Prevention is much more important than treatment. Infested birds
should be killed and the heads, respiratory and digestive organs burnt.
Chickens acquire infection from turkeys, wild birds or from eggs and larvae
carried over in the soil from previous infection. For about four to six weeks
chicks should be raised on board floors and the droppings should be removed
at regular intervals. They should never be kept on the same ground with
turkeys. Moist localities where earthworms are likely to occur should be
avoided. New chicks should be purchased out of clean flocks and quarantined.
Infection from wild birds should be avoided. In this country snipes are sus-
pected to serve as carriers.

The author is grateful to the Director and the Pathologist for much kind
encouragement.

                                    REFERENCES

Baylis, H. A. (1936). The Fauna of British India Nematoda 1, 1-408.
Chapin, E. A. (1925). J. Agric. Res. 30, 557-570.
Montagu, G. (1811). Mem. Werner. Nat. Hist. Soc. Edinburgh i, 194-198.
Siebold, C. von. (1836). Arch.f. Naturg. ii, i, 105-116.
Srivastava, H. D. (1935). Proc. Acad. Sci. U. P. India, 4, 3, 283-287.
—(1937). Proc. Ind. Sci. Cong. Sect. VIII, Abst. No. 47.