134 DR. MARTIN BARRY ON FIBRE. 



Fig. 144. Frog. Sketch of a large muscular fibril from the heart ; a, on its 



edge (interspaces oblique) ; ft, on its flat surface (par. 92). 

 Figs. 145, 146. Newt (Triton cristatus, LINN.). Sketch of red blood-discs con- 

 taining filaments ; a, on the edge (interspaces oblique) ; ft, on the 

 flat surface (par. 92). 

 Fig. 147- "Transverse section of the tooth of the Ornithorhynchus near the 



apex, where the tubes have become closer" (par. 99). 



Fig. 147 j. From HENLE. (Allgemeine Anatomic. Lehre von den Mischungs- 

 und-Formbestandtheilen des menschlichen Korpers, 1841. Taf. IV. 

 fig. 5. 1.). From the nervus ischiadicus of the Frog ; " a ausgetretenes 

 Mark, ft zusammengefallene Scheide." 



Fig. 148. Man. Sketch of objects from the blood-clot, a. Parent cell ; filled with 

 blood-corpuscles having the form of Ammonites. ft. More advanced states 

 of such blood- corpuscles, discharged from a parent cell, and seen with 

 others lying in a group. They have the spiral form. 7. Similar blood- 

 corpuscles of a larger size, i. e. in a state more advanced : the upper 

 one beginning to undergo division. S. Spiral fasciculus of filaments 

 (par. 97). 



Fig. 149. Newt (Triton cristatus, LINN.). Sketch of blood-corpuscles from the form- 

 ing clot. No addition had been made (par. 96). All are flask-like 

 vesicles (par. 96). a. The membrane without folds, ft. Folds are seen. 

 7. The filament protruding. S. Two filaments visible in the interior : 

 the nucleus apparently giving them off. 

 Figs. 150 to 152. Sketches of blood-corpuscles, and of filaments derived from them : 



as seen in the clot of the Frog and Newt. 



Fig. 150. Parent corpuscle, or cell, containing a coiled filament (a), which sur- 

 rounds two young coiled filaments (ft, ft). A pellucid nucleus in 

 each of the latter (par. 99). 



Fig. 151. Parent corpuscle, or cell, containing a coiled filament, which sur- 

 rounds many young coiled filaments. 

 Fig. 152. Coiled filaments, derived from blood-corpuscles: a, with a cavity in 



the centre ; ft, unwound. 



Fig. 153. Sheep. From the clot of blood: nine hours after the bleeding. Sketch 

 of filaments, a. A spiral having been produced, it is elongating, ft. The 

 elongation has proceeded farther ; and at 7 has produced the appearance 

 of a merely twisted filament. Of these filaments, about half a dozen lay 

 abreast, and some of them were united at their extremities. 5. Structure 

 of the filaments. 2. Similarly twisted filaments. . Spiral; apparently 

 an altered red blood-disc. The whole blood-red. 

 Fig. 154. Newt (Lissotriton punctatus, BELL). From the blood-clot. Sketch of an 



