FACULTY OF SUSTAINING HEAT. 409
fly-carrier, in the same manner, and for similar purposes,
that the breed of the silk-worm is encouraged. He de-
clares that he has frequently seen so abundant a harvest
of the animal cotton, that in the space of two hours he
could collect the quantity of one hundred pints, French
measure. Moreover, animal cotton is attended with hone
©f the difficulties which occur in the preparation of vege-
table cotton, and it requires less time and less trouble to
procure it, and there seems to him no doubt that it will
stand the competition with silk and vegetable cotton ;
these, when applied to wounds, serve only to inflame and
envenom; but the animal cotton may be used as lint,
without the smallest inconvenience.
Further Instances of the Faculty of Sustaining
Heat.
[Translated from the French.]
This faculty is not peculiar to the young Spaniard at
Paris (see our last Number, p. 352) and "whose case was
expatiated upon by so many of the French Journalists in
August last.-—-The Memoires of the French Academy of
Sciences for 1761, speak of a young girl who could bear
the heat of an oven upwards of ten minutes, though heated
beyond the the degree of boiling water. Dr. Cullen, of
Edinburgh, also relates a number of similar cases which
were collected in 1765, to prove that certain animals pos-
sess a faculty of producing cold, probably to counteract
heat. Dr. Fordyce, in 1765, remained two minutes in a
stove heated to 39 decrees, and 15 minutes in another
heated to 43 degrees. Sir Joseph Banks remained in a
room heated to 79 degrees. It is the thermometer of
Reamur which is to be understood here. The air, says
Sir Joseph Banks, at this high temperature, occasions a
painful sensation, which, however, is still tolerable. Mr.
Dobson
fly-carrier, in the same manner, and for similar purposes,
that the breed of the silk-worm is encouraged. He de-
clares that he has frequently seen so abundant a harvest
of the animal cotton, that in the space of two hours he
could collect the quantity of one hundred pints, French
measure. Moreover, animal cotton is attended with hone
©f the difficulties which occur in the preparation of vege-
table cotton, and it requires less time and less trouble to
procure it, and there seems to him no doubt that it will
stand the competition with silk and vegetable cotton ;
these, when applied to wounds, serve only to inflame and
envenom; but the animal cotton may be used as lint,
without the smallest inconvenience.
Further Instances of the Faculty of Sustaining
Heat.
[Translated from the French.]
This faculty is not peculiar to the young Spaniard at
Paris (see our last Number, p. 352) and "whose case was
expatiated upon by so many of the French Journalists in
August last.-—-The Memoires of the French Academy of
Sciences for 1761, speak of a young girl who could bear
the heat of an oven upwards of ten minutes, though heated
beyond the the degree of boiling water. Dr. Cullen, of
Edinburgh, also relates a number of similar cases which
were collected in 1765, to prove that certain animals pos-
sess a faculty of producing cold, probably to counteract
heat. Dr. Fordyce, in 1765, remained two minutes in a
stove heated to 39 decrees, and 15 minutes in another
heated to 43 degrees. Sir Joseph Banks remained in a
room heated to 79 degrees. It is the thermometer of
Reamur which is to be understood here. The air, says
Sir Joseph Banks, at this high temperature, occasions a
painful sensation, which, however, is still tolerable. Mr.
Dobson