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JOURNAL OF ECONOMIC ENTOMOLOGY 
[Vol. 17 
in carrying them. The extensive experiments with small balloons of a 
low buoyancy conducted by the New York State Conservation Com¬ 
mission in connection with the gipsy moth work, have demonstrated 
that long drifts, several hundred miles, are possible within 10 to 24 
hours and that upward currents over heated areas may easily carry 
objects capable of floating in the air to heights of several thousand feet. 
The recovery of plant spores at 10,000 feet in the air is significant and 
the finding of grasshoppers at 1,000 feet above the surface and of 
mosquitoes at considerable elevations all tend to show that we know 
too little of insect movements, probably largely drifting, in the lower 
strata of the air. If man, the latest mammal to invade the air, can support 
himself in the ether for hours with a relatively crude glider, is it not 
reasonable to suppose that many insects, reared for aerial existence 
through countless generations, could do equally well and drift on the 
wings of the wind with slight muscular exertion. The rather common 
occurrence of many insects on high mountains, on glaciers and along 
the shores of bodies of water, all suggest that they may have been carried 
by winds and dropped by descending air currents likely to be found under 
such conditions. Air planes are being used for the distribution of poison. 
Could they not be employed occasionally for securing data on the 
vertical distribution of insects in the lower air strata? The swarms of 
aphids in late summer and early fall suggest air distribution. The 
cotton moth invites the attention of the aviator-entomologist. 
Obituary 
REGINALD CHARLES TREHERNE 
Reginald Charles Treherne was born at Aldershott, England, on 
March 24, 1886. He died June 7, 1924, at Ottawa, Canada, from acute 
peritonitis. He was graduated from the Ontario Agricultural College 
and received the degree of Bachelor of Science in Agriculture from the 
University of Toronto in 1909. During the summer of 1908 he was 
employed in entomological investigations by the Louisiana State College 
and during the summer of 1909 was engaged in nursery inspection work 
in the Province of Ontario. In the same year he was appointed a field 
officer in the Dominion Entomological Service and for two years was 
engaged in investigations in the Provinces of New Brunswick and 
Ontario. In 1911 he was transferred to British Columbia, where he 
remained until 1922. He was promoted in 1915 to the position of 
Entomologist in Charge of Insect Investigation of British Columbia. 
