270 
Hot Air Disinfestor 
thermo-couple was passed up the leg of a pair of riding breeches, and the 
junction-point was fastened at the crutch of the breeches. 
In 2 
In 5 
In 10 
In 15 
In 20 
minutes the temperature had reached 54° C. 
5 5 
55 
5 5 
55 
55 
55 
55 
55 
55 
55 
64 
72 
78 
83 
All lice were killed and eggs shrivelled. No damage was done to the leather 
of riding breeches or to the braces. The bathing operation was not delayed 
by the disinfestation process. 
Test C. Disinfestor at Corps Skin Hospital, Estree Cauchie. 
2560 blankets were disinfested in a day of 7| working hours. 128 blankets 
formed a load—20 loads were disinfested, and each load was controlled by 
temperature measurements. The braziers were lit at 7.30 a.m., operation 
commenced at 9.13 a.m. The braziers were re-charged during the lunch 
interval. In all 195 lbs. of coke were used during the day. 
The point of the thermo-couple was placed in the folds of the blankets 
which were suspended from hooks in the truck. 
The following results of measurements of one of the charges can be taken 
as typical of the series: 
In 2 minutes the temperature was 57° C. 
In 10 ,, ,, 69 
In 15 „ „ 79 
In 20 ,, ,, 83 
Test D. Disinfestor at Corps Skin Hospital, Estree Cauchie. 
Load of “wet” clothing. The charge consisted of 20 blankets and 33 
articles of hospital clothing, which were thoroughly wet, through standing 
in the rain. The blankets were hung from their centres and the thermo¬ 
couple was placed inside the cone formed by one of the blankets. The point 
of the couple was about 18" from the apex of the cone. The temperature 
immediately after closing the door was 25° C. 
In 5 minutes the temperature was 44*5° C. 
In 11 
5 5 
55 
56-0 
In 15 
5 5 
55 
60-0 
In 20 
55 
55 
64-5 
In 25 
55 
55 
71-0 
In 30 
5 5 
55 
77-0 
This was a very severe test and shows that the disinfestor is capable of 
dealing with wet clothing, provided the time be slightly extended. The 
blankets came out dry. 
