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12. In what refpec?s are moles injurious to vegeta- 
tion; and what are the be/t means of deftroying them? 
IX. ON THE IMPROVEMENT OF PLANTS, 
BY INTRODUCING NEW VARIETIES, 
The following queries, with regard to the im- 
provement of plants, by introducing varieties, 
through the medium of cultivation, drawn up 
by an intelligent friend to agriculture, are alfo 
particularly recommended to the attention of 
the reader. 
1. Are there any means of increafing the quantity 
of feeds, in the feveral particular fpecies of plants, fo 
as to render them more numerous? And if there are, 
what are they ? 
2. Are there any means of increafing the fize of thé 
cotylydons of plants, fo as to make them contain a larger 
quantity of faccharine, or farinaceous matter, whether 
they be covered only with membranes, as in the gramina, 
or likewife with anadditional hard covering, as in nuts? 
3. Are there any means of increafing the faccharine 
matter in fruits 2 
4. Are there any means of increafing the fixe of 
fruits, without rendering them more watery? 
5. Are there any means of increafing the flavour of 
fruits? ‘ 
I am not qualified to give fpecific anfwers to thefe 
queries; generally, however, a pure healthy foil 
will produce pure and healthy vegetables, and vege- 
tables 
