41 
In 1886, Prof. Cook reported before the Ingham Horticultural 
Society that experiments at the College that year had showed con- 
clusively that, if carefully applied ar d used in time, it was a specific 
again- 1 the maggots. Those who had reported that it would not do 
effective work in clay soil, or that it killed the plant, had, without 
doubt, deferred the application till the plants were bcyond-liope. 
A Mr. L,ce, in the audience, said he had tried the liquid, and knew 
it would always work cn clay or sand, and not hurt the plants. He 
made a hole a little way from the plant. We italicize this sentence, 
because it is the key-note of success with this substance. We believe 
that most of the reported injury to the plants has been due to the 
hole having been made close beside the plants so that the liquid 
itself reached the roots. The liquid would very quickly kill the 
root, but its vapor would do no harm. This point is more full - 
emphasized later on. 
