278 SPECIAL HISTOLOGY. 



in the persistent sarcolemma ; and lastly a diminution of the 

 fasciculi, which did not measure more than 0*002 — 0-004'" in 

 width. I also believe, that I noticed in many fasciculi the deve- 

 lopment of larger, serially disposed cells, with very large and dis- 

 tinct nuclei, exactly like the so-termed cancer-cells. The condi- 

 tion of the muscles in emaciation is unknown. In an emaciated 

 Frog, which had fasted for eight months, Donders observed 

 that the fasciculi were more slender, which he attributed 

 chiefly to the removal of the interstitial substance between the 

 fibrils. Paleness of the muscles is very common in dropsy, 

 chlorosis, paralysis, lead-poisoning, old age, &c. ; in which 

 cases, probably, the numerous brown or yellow granules are 

 formed from a portion of the colouring matter. This condition 

 is generally associated with softening, in which the fasciculi no 

 longer exhibit any distinct transverse strise or fibrils, and 

 readily break up into numerous particles, or even into a 

 pultaceous matter. In tetanus, in which rupture of a muscle 

 frequently occurs, Bowman ('Phil. Transact./ 1841, p. 69) 

 observed on the fasciculi numerous nodular enlargements, in 

 which the transverse stripe were very closely approximated, and 

 between them either actual rupture of the fibrils, or at all 

 events a considerable stretching and disorganization of them, 

 both of which states are clearly to be referred to a powerful 

 and irregular contraction. The muscles sometimes contain 

 concretions, particularly as the result of the cretification of pus, 

 tubercles, and cysticercus-vesicles ; sometimes also true bones, 

 such as are produced after prolonged exercise in the deltoid 

 and other muscles (Exercirknochen). Of parasites are to be 

 noticed the not unfrequent Cysticercus celluloses and Trichina 

 spiralis; and, besides these, in the Eel a nematoid worm, 

 observed by Bowman ('Cyclop, of Anat.' II, p. 512) alive, in 

 the almost empty sarcolemma. I met with something analogous 

 to the latter, some years ago, in the abdominal muscles of the 

 Bat (as have Y. Siebold and Miescher also in the Mouse); that 

 is to say, white streaks 4 — 7'" long, and 0*09 — 0-01 wide, which, 

 on microscopic examination, proved to be hollow primitive 

 fasciculi, entirely filled with elliptical, slightly curved corpuscles, 

 0-004 — 0-005'" long by 0-0019'" wide, and manifestly ova. 

 The portions of the fasciculi thus transformed into pouches, 

 had avails, 0-009 — - ()l'" thick, with transverse stripes, and 



