= /6StS 
SELECTED REFERENCES 
Abbott, R. Tucker. 1948. Handbook of medically important mollusks 
of the Orient and the western Pacific. Bulletin of the Museum of 
Comparative Zoology at Harvard College, Vol. 100, No. 3, 328pp., 
5 plates. 
. 1950. Snail Invaders, Natural History (American Museum 
of Natural History) Vol. 59, No. 2, pp. 80-85. 
Blair, D. M., et al. 1953. Expert Committee on Bilharziasis, World 
Health Organization Technical Report Series, No. 65, 45 pp. 
Gammon, Earle T. 1943. MHelicid snails in California. State of California 
Department of Agriculture Bulletin, Vol. 32, No. 3, pp. 173-187. 
Lovett, A. L. and A. B. Black. 1920. The Gary Garden Slug, with notes 
on allied forms, Oregon Agriculture College Experiment Station, Bull. 
L770, 43 pp. 
Mandal-Barth, G. 1957. Intermediate hosts of Schistosoma. African 
Biomphalaria and Bulinus, I and II. Bulletin of the World Health 
Organization, Vol. 16, pp. 1103-1163; Vol. 17, pp. 1-65. 
Mead, Albert R. 1949. The giant snails. The Atlantic Monthly, Vol. 
184, No. 2, pp. 38-42. 
Morton, J. E. 1958. Molluscs. Hutchinson University Library, London. 
i252 pp. 
Mozley, Alan. 1952. Molluscicides. H. K. Lewis and Co., Ltd., 
London. 87 pp. 
Pilsbry, Henry A, 1939-48. Land Mollusca of North America (North of 
Mexico). The Academy of Natural Sciences of Philadelphia, Mono- 
graphs, Nova3sa Vols. liandali, o2215ipp- 
Quick, H. E. 1952. Emigrant British Snails. Proceedings of the 
Malacological Society of London, Vol. 29, Part 5, pp. 181-189. 
Rees, W. J. 1950. The giant African snail. Proceedings of the Zoo- 
logical Society of London, Vol. 120, Part 3, pp. 577-588. 
