im to the Tower, expecting a message to that purpose; but by this
means his case is like to be laid by. From this we fell to other
discourse, and very good; among the rest they discourse of a man that is a
little frantic, that hath been a kind of minister, Dr. Wilkins saying that
he hath read for him in his church, that is poor and a debauched man, that
the College' have hired for 20s. to have some of the blood of a sheep let
into his body; and it is to be done on Saturday next.

[This was Arthur Coga, who had studied at Cambridge, and was said to
be a bachelor of divinity. He was indigent, and "looked upon as a
very freakish and extravagant man." Dr. King, in a letter to the
Hon. Robert Boyle, remarks "that Mr. Coga was about thirty-two
years of age; that he spoke Latin well, when he was in company,
which he liked, but that his brain was sometimes a little too warm."
The experiment was performed on November 23rd, 1667, by Dr. King, at
Arundel House, in the presence of many spectators of quality, and
four or five physicians. Coga wrote a description of his own case
in Latin, and when asked why he had not the blood of some other
creature, instead of that of a sheep, transfused into him, answered,
"Sanguis ovis symbolicam quandam facultatem habet cum sanguine
Christi, quia Christus est agnus Dei" (Birch's "History of the Royal
Society," vol. ii., pp. 214-16). Coga was the first person in
England to be experimented upon; previous experiments were made by
the transfusion of the blood of one dog into another. See November
14th, 1666 (vol. vi., p. 64).]

They purpose to let in about twelve ounces; which, they compute, is what
will be let in in a minute's time by a watch. They differ in the opinion
they have of the effects of it; some think it may have a good effect upon
him as a frantic man by cooling his blood, others that it will not have
any effect at all. But the man is a healthy man, and by this means will
be able to give an account what alteration, if any, he do find in himself,
and so may be usefull. On this occasion, Dr. Whistler told a pretty story
related by Muffet, a good author, of Dr. Caius, that built Keys College;
that, being very old, and living only at that time upon woman's milk, he,
while he fed upon the milk of an angry, fretful woman, was so himself; and
then, being advised to take it of a good-natured, patient w