35 
or some blotting paper soaked in pure creosote in 
order to prevent mould. Collecting boxes should be 
moistened to the extent of making the cork shew 
through the paper (Newstead). 
Fig. 49 . Authors ’ Method of Preserving Mosquitoes 
Endeavour always to collect both male and female, 
at least two of each, and, what is of the greatest 
possible importance for the advance of our knowledge 
of mosquito classification, the careful description of 
ova and larvae. 
