288 
Concerning these he says: “Several dead cabbage buttertlies 
were observed. Other insects, principally flies and ichneumons 
dead on the snow, the larger ones causing the formation of 
deep holes in the snow. Several flies and wasps were alive when 
captured.” He thinks there is little doubt that all these insects 
were carried to the higher altitudes by the wind, and that 
between the lower temperature and the lower air pressure few 
are able to survive for any length of time. 
