the medical
profession, so far from hailing Mr. Benjamin Douglass Perkins as another
Harvey or Jenner, looked very coldly upon him and his Tractors; and it is
now evident that, though they were much abused for so doing, they knew
very well what they had to deal with, and were altogether in the right.
The delusion at last attracted such an amount of attention as to induce
Dr. Haygarth and some others of respectable standing to institute some
experiments which I shall mention in their proper place, the result of
which might have seemed sufficient to show the emptiness of the whole
contrivance.

The Royal Society, that learned body which for ages has constituted the
best tribunal to which Britain can appeal in questions of science,
accepted Mr. Perkins's Tractors and the book written about them, passed
the customary vote of thanks, and never thought of troubling itself
further in the investigation of pretensions of such an aspect. It is not
to be denied that a considerable number of physicians did avow themselves
advocates of the new practice; but out of the whole catalogue of those
who were publicly proclaimed as such, no one has ever been known, so far
as I am aware, to the scientific world, except in connection with the
short-lived notoriety of Perkinism. Who were the people, then, to whose
activity, influence, or standing with the community was owing all the
temporary excitement produced by the Metallic Tractors?

First, those persons who had been induced to purchase a pair of Tractors.
These little bits of brass and iron, the intrinsic value of which might,
perhaps, amount to ninepence, were sold at five guineas a pair! A man
who has paid twenty-five dollars for his whistle is apt to blow it louder
and longer than other people. So it appeared that when the "Perkinean
Society" applied to the possessors of Tractors in the metropolis to
concur in the establishment of a public institution for the use of these
instruments upon the poor, "it was found that only five out of above a
hundred objected to subscribe, on account of their want of confidence in
the efficacy of the practice; and these," the committee observes, "there
is reason to believe, never gave them a fair trial, probably never used
them in more than one case, and that perhaps a case in which the Tractors
had never been recommended as serviceable." "Purchasers of the
Tractors," said one of their ardent advocates, "would be among the last
to approve of them if