127 



and small varieties, tlie former being, as usual, sharp and well-defined 

 in their course, without any appearance of a granular arrangement ; 

 wliile the former ajipeared to be com])osed of very minute globules, 

 extremely regular in size and shape, the stria? apparently resulting 

 from the exact apposition laterally of the granules, and of the depres- 

 sions or spaces between them. The diameter of the granules was 

 about 1-1 6000th of an inch. Some of the transversely marked 

 fibres could be traced on the outer surface of the gullet as far as four 

 and a half inches from its termination, but they were completely lost 

 on the inner muscular layer one inch and a half nearer to the pha- 

 rynx than here indicated. The diameter of the muscular fasciculi 

 in the heart was from l-1333rd to l-666th of an inch. 



" The remaining portion of the muscular fibres, as far as the sto- 

 mach, was chiefly composed of the riband-like filaments, varying from 

 l-3000th to l-"2G00th of an inch in diameter. These were every- 

 where pervaded by irregular corpuscles from l-4000th to 1 -2000th 

 of an inch in diameter, giving to the gullet a knotted appearance, 

 with about 1 -500th of an inch longitudinally between these bodies. 



"11. In the Fallow Deer {Cervus Duma, Linn.) almost the whole 

 extent of the muscular tunic was made up of the striated fibres, which 

 could be detected in the last portion of the oesophagus, though mixed 

 about two inches above the stomach with the muscular fibre of 

 organic life. There was a considerable quantity of tissue, com- 

 posed of longitudinal filaments, riband-like, apparently quite flat, 

 with very distinct margins, and each measuring transversely from 

 l-4000th to l-3000th of an inch. Portions of the striated fibres 

 often seemed to terminate insensibly in these riband-like filaments. 



" 12. In the Calf (fios Taurus, Desm.) the muscular covering pre- 

 sented the striated fibres to within half an inch of the stomach. 

 The striae were generally of the larger kind. Only one observation 

 was made with this animal, and that in a foetus at the seventh month 

 of utero-gestation. 



" 13. In the Sheep {Ovis Aries, Desm.) it was composed entirely 

 of fibres, measuring from l-666th to l-250th of an inch in diame- 

 ter, the strise being both of the sharp and small, and of the large and 

 obscurely globular vtirieties. Some of the transversely-marked fibre 

 was also detected extending for three quarters of an inch on the 

 great end of the stomach, among the muscular fibre of animal life in 

 that situation. 



" 14. In the Bearded Sheep (Ovis Tragehiphiis, Desm.) the striated 

 fibre extended ;o within half an inch of the termination of the gullet. 

 The fascicles were very variable in diameter, viz., from l-2000th to 

 l-400th of an inch. In the heart they measured from l-777th to 

 to 1-1 143rd. 



" 15. In the Cashmire Goat (^Cupra Hirciis, var.) the striated fibre 

 was continued down to the stomach, being found abundantly on the 

 last portion of the oesophagus. A common diameter of the fibres 

 was l-666th of an inch; in the heart they measured from l-2666th 

 to l-1333rd of an inch. 



" 16. In theCoati {Nasua fusca, Desm.) the oesophageal muscular 



