XIII. Observations on the Muscles ; and particularly on the 

 Effects of their Oblique Fibres. By Alexander 

 Monro, M. D. F. R. S. Ed in. Profeffbr of Medicine, Ana- 

 tomy and Sufgery in the Univerfity of Edinburgh, Fellow of 

 the Royal College of Phyficians in Edinburgh, and of the 

 Royal Academy of Surgery in Paris. 



[Read fan. 7. 1793.] 



AS it appeared to me, when I firfl began, in 1759, to deliver 

 in this Univerfity a public courfe of lectures on Anatomy 

 and Surgery, that the ftructure of the oblique mufcles had not 

 been fufficiently examined, nor even the number of them at- 

 tended to by authors, and that fome of their chief purpofes or 

 effects had been entirely overlooked by them, I endeavoured 

 then, and in every courfe of lectures fince that time, to direct 

 very particularly the attention of fludents to thofe fubjects. 



I began with obferving, as a material defect in the other- 

 wife very accurate and elegant tables of Albinus, as well as in 

 the former fyftems of Vesalius, Eustachius, Bidloo and 

 Couper, that the tendinous membranes or apaneurofes, with 

 which many mufcles, particularly of the extremities, are co- 

 vered, and with which the oblique mufcles are clofely connect- 

 ed, were not delineated, yet that the knowledge of thefe is not 

 only of ufe in the practice of furgery, but for underftanding 

 the action of the mufcles. 



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