THE 

 LONDON, EDINBURGH and DUBLIN 



PHILOSOPHICAL MAGAZINE 



AND 



JOURNAL OF SCIENCE. 



[FOURTH SERIES.] 



AUGUST 1852. 



XI. Renewed Inquiries concerning the Spiral Structure of Muscle, 



with Observations on the Muscularity of Cilia. By Martin 



Barry, M.D., F.R.S* 



[With Two Plates.] 

 [nnHESE renewed examinations of muscle, extending over a 



A period of many months, were made in the house of the 

 veteran Purkinje; whose judgement in the matter may be in- 

 ferred, when it is stated that, — after what he had seen during 

 that long period of almost daily demonstrations by the author, 

 and the devotion of whole mornings to the subject with almost 

 every kind of muscle that could be obtained, — he translated an 

 account of the same into German, printing no fewer than sixty- 

 eight pages.] 



Deprived for years of the pleasure of microscopic research by 

 an affection of his sight, the author finds himself in this respect 

 so far restored, that it does not appear necessary to deny himself 

 that pleasure any longer. If he has erred in taking vip the mi- 

 croscope again, that is to say, should his sight be thereby injured, 

 he thinks he may well claim to be excused. 



For it could not be to him a matter of indifference that his 

 researches on the structure of muscle had not met with the 

 attention he had expected, and which the subject well deserves. 

 He therefore felt driven to renewed research ; and, after nine 

 months of still more rigid investigation, does not find occasion 

 to give uj) his former views. So far from this, indeed, his 

 opinion that muscle has no other than a spiral structure has 

 been even more confirmed. He has met with unexpected states 



* Communicated by the Author; beinfj tlie substance of a paper translated 

 into German I)y Professor Purkinjc, Foreign Member U.S., and by him 

 communicated to Miiller's Archiv, Ilcft vi. 1850. 



Phil. Mag. S. 4. Vol. 4. No. 23. Aug. 1852. G 



