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11. Sir George King (1871-1897) ; fide A. T. Gage, lc. 
12. Sir David Prain (1897-1905) 
13. Lieut.-Col. A. T. Gage (1906-1923) 
14. C. C. Calder (1923-1938, on leave prefatory to retirement) 
15. K. P. Biswas (1938- 
Library: There is an up-to-date library of the Botanical Survey 
of India in the Indian Museum. The Curator, Industrial Sec- 
a. Oxi- 
mate number of specimens is about 2,500,000. Present curator, 
Mr. K. Biswas, M.A., has charge of the scientific part of the work 
and botanical exploration in different parts of the country. Loan- 
ing of specimens and exchange of herbarium materials are sys- 
tematically carried on with botanists of different institutions all 
over the world. 
Plantations: Geographical, containing fairly good representatives 
of the tropical plants of the world. The total number of trees 
and shrubs is about 1500. There is a large number of her- 
baceous specimens and grasses which are not counted. There are 
several ferneries, orchid houses and plant houses where valuable 
exotic palms, orchids and ferns are systematically cultivated. 
There is also a large nursery in which horticultural experiments 
