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very agill matter. wch air being included in soe exceeding -
small and very thinn skinns. was very easily wrought on
by heat and cold and other agitating propertys of the liquors
that passe between them. and thereby they might be present
ly filled by the said Included air's being rairfyd and
emptied by the condensation of the same from the wantt
of that heat continued. and soe by the successiue rarefac
tion & condensation of the same air included in the aforesaid
chain of bladders the string thereof was made either
shorter or Longer each of wch was soe much either
more by how much more the rarefaction or the
condensation was the Greater.

Vpon this, occasion was taken to Discourse of the causes
of the motion of the muscles. And how far the air
taken in by the lungs might contribute towards the
muscular motion, And It was beleiued that It was
of Great necessity for that very purpose and serued
continually to supply a pabulum neceary therevnto &
wthout wch. it could not be performed.

Dr. King was of opinion that the motion of the
muscles proceded from the liquor of the nerues and alled
ged the exceeding minutenesse of the diuarication thereof
Insoemuch that wth. a microscope twas possible to trace
them till they were very much smaller then the hair of
of a mans head and yet might be found to Diuaricate
and to cleaue into more and smaller ramifications -
That he had traced these small Diuarications into the
very middle of the body of . . . these muscular fibres
It was Iudged both might be necessary to produce that
motion.
mr. Henshaw objected that the Diuers for sponges and
corall at Samos could hold their Breath 3/4 of an houre
Vpon this also he related his designe of Dissecting an otter
in order to Inquire into mor. Des Cartes assertions

Ref: CELL/RS/HF_198  © Centre for Editing Lives and Letters