126 



quarter of an inch below the superior border of the sternum. The 

 bundles were from l-1600th to l-1143rd of an inch in diameter. 

 Nearer to the stomach the muscular fibres of animal life were mixed 

 with those of organic life, the former being completely lost within 

 half an inch of the cardiac end of the oesophagus. The muscular 

 fasciculi in the heart were very indefinite, but manifestly smaller than 

 in the gullet. 



" 5. In the Asiatic Leopard (Felis Leopardiis, Desm.) the muscu- 

 lar fibre of animal life was seen to witliin one inch and three quarters 

 of the cardiac end of the gullet. In this situation, and about half an 

 inch further up, the striae were remarkably small and fanit. Three 

 inches from the stomach the muscular fibre was almost entirely that 

 of animal life. The fascicles measured from l-500th to l-333rd 

 of an inch in diameter; in the heart, from 1 -'2666th to l-666th, 

 1— lOCOth being a comirion size. 



" 6. In the Lynx ( Feiis Lynx, Linn.) the muscular tunic was com- 

 posed entirely of the striated fibre to within seven inches and a half 

 of the stomach. Many cf the striae were very large, and separated 

 by rather wide intervals, viz., about l-8000th of an inch. Two 

 inches higher the striae were generally of the finer kind. About si.x 

 inches from the stomach the muscular fibre of animal and that of 

 organic life were mixed in about equal proportions ; and the former 

 was lost in a little more than an inch lower down. The fibres of 

 the latter were riband-like, about l-4000th of an inch broad, and 

 containing distinct corpuscles, as in llie horse. The fascicles of the 

 former were from 1 -1000th to i-66Gth of an inch broad. In the 

 heart the fascicles presented a diameter varying from l-2000th to 

 l-800th of an inch ; 1-1 333rd of an inch was a common size. 



" In the Caracal {Felis Caracal, Linn.) some ill-defined fasciculi 

 were observed to within half an inch of the cardia, but no striae 

 could be seen nearer to it than an inch and a half. Three inches 

 and a half from the end of the gullet the fasciculi were distinct and 

 general, but the stria faint and often invisible. The riband-like 

 fillets in the organic muscular tissue could not be detected. 



" 7. In the Common Rat {Mus decunianiis, Desm.) the muscular 

 fibre was throughout fasciculated and transversely marked, a\ ithout 

 any visible intermixture of fibre of a different character, even close to 

 the stomach. The stria; were chiefly, if not exclusively, of the 

 larger kind. 



" 8. In the Common Guinea Pig (Cavin Cobai/a, Desm.) the striated 

 fibres extended to the stomach; they measured from l-1600th to 

 l-400th cf an inch in diameter. In the heart their diameter was 

 from l-2000th to 1-SOOth of an incli. 



" 9. In the common Rabbit (Lepus Cuniculus, Linn.) the striated 

 fasciculi extended to the termination of the gullet, and even to a 

 short distance on the cardia. 



" 10. In the Horse {Equvs Caballus, Linn.) the muscular sheath, 

 to within seven or eight inches of its cardiac end, was constituted al- 

 together of the striated fasciculi, having a diameter varying from 

 I-444th to l-266th of an inch. The stna; were both of the large 



