PHILOSOPHICAL 
TRANSACTIONS. 
I. The Croonian lecture on the Arrangement and mechanical 
Action of the Muscles of Fishes. By Anthony Carlisle, Esq. 
F.R.S. F.L.S . 
Read November 7, 1805. 
It was my intention to have continued my physiological 
inquiries on the phenomena of muscular motion, by a series 
of chemical experiments ; and to have communicated the 
result, when duly matured, to the Royal Society. But an un- 
expected request, made at a late period, for the Lecture of the 
present year, obliges me to defer those researches, and to 
limit the investigation of the subject I have chosen. 
The application of the motive organs of animals has already 
furnished examples of general utility by increasing our know- 
ledge of mechanical powers ; and the cultivation of this study 
promises still further improvement. 
The muscles of fishes are of a very different construction 
from those of the other natural classes. The medium in 
which these animals reside, the form of their bodies, and the 
q mdcccvi. B 
