1919.] The Sixth Indian Science Congress. CCXXiii 
With these precautions, there is little likelihood of epidemic spread in 
camp. 
The precautions adopted with regard to ration stores are detailed. 
are conditions in Mesopotamia affecting the 
rence ’ heatstroke.—By J. Taytor. 
Two severe heat waves occurred in Basra in 1917. Maximum 
Celpern tires of | 199° F and 118° F. were reached in the two waves. These 
temperatures were associated with high maximum wet bulb readings 
° 
r te 
of over 85 rature 5° F. was reached in one wee 
s to hospital occurred in British troops year for the 
conditions classified as ‘ Heat.” Of se 88 Zan! cent posi 
first y h 
‘* Effects of Heat” capleneg for 54:4 per cent of the total nang the 
in British troops in the 
This condition a shegind 3°02 per cont of the deaths in Indian 
troops 
The conditions which appeared to favour the occurrence of heatstroke 
were a temperature of over 110°F. along with a wet bulb maximuin 
of over 85°F. 
The variations of wet and dry bulb maximums over these limits 
im 
had core espondin ing effects on the amount of hea sca a ocnpenahies of 
over 115°F. being especially dangerous with a high wet bulb. 
The y maximums of wet and dry bul beiiifavates h 
week]; x y ona 
chart alon, Behl ses weekly admission rates per mille of De sh troops and 
— 
is 8 suggested that when a wet bulb ang er of 85°F. over is 
Gates, the amount of evaporation from the body surface wiles 4 
occur will with difficulty or the body temperature down to nora 
when air temperature of he to 120°F. prevails. 
Heatstroke in Basra was most severe Paths the wind failed entirely, 
and when a moist south iat 3 ocean These conditions would lesse: 
tion 
ndia a, temperatures be over 110°F. are frequent, but a large 
hese 
amount of heatstroke is unusual. These temperatures ae occur 
under very dry a aithnenhertat penetra in India and the onset of the 
monsoon basin would tend to raise wet bulb readings "podlaan es the 
air temperatur 
In Basra iia no monsoon, and the cooling effect is not obtained at 
a time when a moist wind from the south will raise the wet bulb 
re 
In sia ans suffered much less from ‘‘ Effects of Heat” than British, 
probably from their _ regulating mechanism being adjusted to tropical 
ie gpa while most of the British troops who suffered i in Mesopotamia 
had not had eee experience of a hot weather. 
The fe wbectge between cede in Amritsar and previous 
wea T. WALKER, F.R.S 
n his recent fepork on malaria in halea Maj or C, A. Gill opemsiars, 
1917) “tne pointed out the close relationship between the autumnal 
fever mortality and the monsoon rainfall. Much work on this alee has 
n done b. 
so the 
the rainfall of July and August the mortality of October and Nov r has 
the very inane sages coeiiicleiss of + 0°8, with a probable ra ia 0-04. 
