Ixxxvi Proceedings of the Asiatic Soc. of Bengal. [N.S., XVII, 
tions for crops will require to be worked out from the botani- 
eal standpoint and will also require work of a specialized 
character. Further, it is necessary that the work should take 
the form of a more or less concentrated investigation of parti- 
cular subjects, research work, as a rule, being not immediately 
applicable to practice. Success is thus most likelv to follow 
joint investigations in particular directions. What these should 
.be depends on circumstances. A form of concentrated investi- 
gation which has already produced results of benefit to planters 
me 
oned, viz, specialization in crops. ifferent crops or, at 
any tate, different groups of crops require difterent soil condi- 
tions, different timings, etc , and a gh investigation of 
turist to work out a rational system of agriculture based on 
a full knowledge of what his crops require and how far these 
requirements are being met. 
t any rate it must be conceded that in addition to an 
adequate provision for research. which must be uncontrolled and 
unfettered, a special organization of investigation is called for 
in order to make the most of the large amount of work which 
has already been done in India and elsewhere with regard to 
soils and crops; to fill up the gaps in our knowledge, and to 
connect up the whole with practical agriculture : and further 
that such investigations should not be in the form of isolated 
The plant Carica Papaya and its enzyme.—By P. B. 
SANYAL. 
_ _ Introduction :—Systematic cultivation of Papaya plant in India for 
industrial purpose has not yet received much attention. The roteolytic 
property of its milky juice has le many to investigate its nature in 
detail but the literature is rather numerous and sometimes contradictory. 
© writer is thus prompted to study the cultivation of the plant, the 
quality of the fruit produced at Pusa and to discuss the commercial pros- 
pect of the papain industry in this country. The subject is divided inte 
three parts, viz:—(1) Agricultural, (2) Bio-chemical and (3) Commercial 
per. In this connection it may be interesting to mention that the 
latter is precipitated with rectified spirit and washed with ether. The 
products are standardized for valuation. Composition of a sample of 
