102 THE NATURE-STUDY OF PLANTS 
Now, the known uses of vegetable hairs are 
manifold, and although it seems pretty certain that 
these make the leaves unpalatable to the bulk of 
animal life, I could not speak decisively without a 



Fria. 41.—Herb Robert. 
Glandular hair from 
the leafstalk to show 
the gland atg. x 120. 
great deal more evidence than I 
possess. 
I have two kinds of snail * in 
my garden in such unconquerable 
abundance that I can always 
supply any one with a very liberal 
allowance of either at short notice. 
I collected a few of each sort, 
putting them into separate jars 
covered with a sheet of glass, and 
giving them some of the leaves of 
the Herb Robert for food: but 
they would not touch them, and 
although I kept the supply fresh 
they ate nothing at all for a whole 
week. 
Again, I have four kinds of 
slug, and their doings were de- 
cidedly peculiar. 
There is a small black one Tf 
that steadily refused to eat the 
leaves. Then there is the Milk 
Slug, { which after four days did 
have a nibble and seemed to be 
none the worse for it. Thirdly, 
there is a large brown one; § he 
began eating during the second night, but by the next 
evening he had turned a fearful colour and was dead. 
* Helix aspersa and Helix ru fescens. + Arion hortensis, 
t Limazx agrestis. 
§ Limax maximus. 
