THIRTY-THIRD BIENNIAI, SESSION 
4 ? 
Following this division into two primary classes might come the sub- 
division of each into distinct races or types. Mdian horticulturists already 
recognize a number of more or less distinct types, such as the Langras 
and Maldas, each of which includes a number of closely related varieties, 
having in common certain characteristics which prove their affinity. Maries 
divided the mangos of his acquaintance into four classes, — Bombays, Maldas, 
Langras, and Budayas; Rolfs divided the mangos of Florida into seven 
groups; while Wester has found three distinct types in the Philippines. 
Many so-called varieties are in reality races or types embracing a number 
of very closely allied forms. 
A Key For Classification. 
It would be an easy matter, by means of a key taking into consideration 
the distinguishing characteristics of each type, to determine the affinities of 
any variety which appeared, and quickly place it in its proper division. A 
comparison with the other members of the type, again by means of a key, 
would determine the right of the variety to be considered distinct. 
The great practical importance of such a work as this, especially the 
placing on record of complete descriptions and accurate illustrations of 
every variety, will be easily understood. With mango culture coming to 
the front as it is at present, particularly in the Western Hemisphere, there 
is great need of accurate information for the guidance of planters, so that 
laying all scientific interest in the subject aside, the practical value of the 
work alone is sufficient to justify an effort on the part of mango enthusiasts 
throughout the world. India, with her undisputed preeminence as a mango 
country, should be the first to take in hand the systematic study of the 
"King of Tropical Fruits," but the work should be carried on simultaneously 
in all parts of the mango-growing world. 
There is, at present, a dearth of literature on the mango, though a 
number of valuable publications have appeared within the last few years. 
The following are some of the principal ones, and will be of interest to 
every student of the subject: The Mango: Its Culture and Varieties, by G. 
Marshall Woodrow (Paisley, 1904); The Mango, by P. J. Wester (Bui. No. 
18, Bureau of Agriculture, Manila, Philippine Islands, 1911) ; The Mango in 
Hawaii, by J. E. Higgins (Bui. No. 12, Hawaii Agricultural Experiment 
Station, Washington, 1906); The Mango in Southern California, by F. W. 
Popenoe (Pomona College Journal of Economic Botany, Vol. 1, No. 4, Clare- 
mont, California, 1911); The Mango in Porto Rico, by G. N. Oollins (Bui. 
No. 26, Bureau of Plant Industry, U. S. Department of Agriculture, Wash- 
ington, 1903). 
Much important information will also be found in the Yearbooks of the 
U. S. Department of Agriculture for 1901, 1907, 1908, and 1910; in Watt’s 
Dictionary of the Economic Products of India; Macmillan’s Handbook of 
Tropical Gardening and Planting (Colombo, 1910); Jumelle’s Les Cultures 
Coloniales (Paris, 1901); and in back volumes of the Tropical Agriculturist 
(Colombo, Ceylon); The Queensland Agricultural Journal (Dept, of Agri- 
culture and Stock, Brisbane); The Agricultural News (Imperial Dept, of 
Agriculture, Barbados); the Bulletin of the Department of Agriculture, 
Jamaica; the Journal of the Royal Horticultural Society, and other publica- 
tions. 
