ON MGRIGULTURE.- 7

that they have proceeded upon in this va- luable fet of experiments, does not entire- ly anfwer the purpofe here required, nor afford us that degree of certainty in this refpect that could be withed for. Experi- ments, therefore, are{till here wanting: Nor can thefe ever in this café be conclu- five, unlefs they are carried on upon a large{cale, and{o much varied as to guard avain{t the particular exceptions that might be occafioned by particular idiofyncra- cies*, or particular habits of body in the

animals cuftomed to them, although they are afterwards eaten with a fufficient relifh.

And if the relu€tance that an animal fhows to eat any plant that may be offered to it, does not always. indicate that fuch plant is unwholefome, fo neither does their eating it at firft freely afford a certain proof that it is ‘nnoxious. Thus Linneus obferves, that animals which have been accuftomed to feed in the open fields, are frequently hurt when carried into woodlands, by eating plants that are pernicious to them, which the cattle that had been bred in thefe laft paftures have learned by ex- perience to avoid. Here, then, it is experzence, and not inftiné?, that guards from danger.

* Idiofyncracy is a term ufed by phyficians, to denote certain peculiarities with which particular animals may be affected, that is by no means common to others of

the fame clafs.“hus one man may have a natural an- B4 tipathy

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