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General Subjects . 
(3) Work as follows: Acid the 4 ozs. of acid to the 7 ozs. of 
water in a saucer (never add the water to the acid) ; then put the 
2 ozs. of cyanide in small lumps wrapped up in blotting-paper into 
the saucer and close the bin up cpiickly ; the fumes do not come oil 
for a few seconds, so there need be no danger of inhaling them. If 
fumigating a room, put the saucer close to a door and drop the cyanide 
into it and shut the door rapidly ; manage so that you need only put 
your arm into the room. 
Leave the stores in the fumes for two hours at least, and then 
open the windows from outside ; do not go into the room for at least 
an hour after the doors and windows have been thrown open. Night- 
time is the best time to fumigate ; a man should keep guard to stop 
people going near when either method is employed, if many people 
are about and used to entering the room. 
If you can put the stores in bins, I should use bisulphide ; if to 
fumigate a room or store, the hydrocyanic gas. With reasonable care 
there is no danger in the use of either. 
GE NEPAL SUBJECTS. 
Green Matter in Lewes Public Bath. 
To an enquiry received by the Director from the Lewes Town 
Council regarding the inconvenience caused by quantities of green 
matter appearing in the Public Baths, the following report was sent : — 
The green matter sent from the public bath at Lewes is mainly 
composed of algm — -the majority are Desmids and Diatoms — but the 
slime masses are formed by a Leuconostoc. There are no traces of any of 
these in the sample of water sent taken direct from the pump. 
The bottom and sides of the bath are probably covered with these 
organisms, which increase with great rapidity ; the slime masses formed by 
the Leuconostoc forming on the floor and sides of the bath, and when 
disturbed by swimmers float to the surface. The green colour is due to 
certain of the “ blue green ” algas contained with the Desmids and 
Diatoms in the slime. A few protozoa and dipterous larvae and seeds of 
elm, etc., were also present, but the cause of the green floating masses is 
undoubtedly the slime-forming algae referred to. 
The remedy found successful in cases of a similar nature is the 
employment of sulphate of lime. The bath should be well cleansed and 
washed out a few times with a strong solution of the above, the sides as 
well as the floor. 
