—.470 — 
start. If therefore we appear to have made little success, this must 
be borne in mind, and we cannot hope to make any but the very 
slowest progress. An interesting example of this in seen in the 
account of the work against Til Stem Borer by C. U. PATEL 
(ACTAS TIPA) 
INSECTICIDES. — When the Section commenced work, insecti- 
cides were very little known or used at all in India. Paris green and 
kerosene emulsion were used to a small extent. We introduced 
Crude oil emulsion, first having it made in England, and then, 
as the sales increased, getting it made locally. As a standard con- 
tact poison it is very effective and useful; it finds a large sale at 
6/4 (8s. 4d.) per 5-gallon drum, making between I50 and 300 gal- 
lons of wash. It is also used for domestic Animals and against Fleas, 
etc. For a stomach poison, we introduced lead arseniate, which is 
locally made and sold at 1 Re. (I s. 4 d.) a pound. It has a 
small sale only and we are now using lead chromate, an insecti- 
cide found after an exhaustive inquiry with the aid of a chemist 
(RSSCFINLOW, ESQ). 
For special work we have found rosin compound a valuable 
insecticide, and on tea soaps are used. During the past seven years 
we have tested many patent and proprietary insecticides sent to us 
by the agents for firms in England and Germany; we have not yet 
found one that can be sold in India at such a price as to take the 
place of the above, and none have any use in India. Among other 
insecticides, we test particularly those offered for use against white 
Ants, and among these we have recommended one which is really 
effective and whose use we stimulate. The following are some that 
we have tested : 
McDousar’s, V. 1, V. 2, Carbolineum, Cardo, Glifts, Apterite, 
BLoMER’s solution, Vermisapon, Atlas compound, Solignum, 
Fichtenin, ROBINSON's tetramulsion. 
It is open to any firm or individual to send insecticides for trial, 
and as we receive a large number of enquiries from users and are 
ourselves large users, we exert a very considerable influence 
upon the trade and use of insecticides, endeavouring to keep out 
useless rubbish made only to sell and to maintain the business at 
a high level. So also with sprayers; we maintain a register of makes 
stocked in India, we test them all, and we recommend, both to the 
