500 
MR. BOWMAN ON THE MINUTE STRUCTURE AND 
Fig. 75. Primitive fasciculus from the Frog, contracting in water, the two ends 
being fixed. The consequence is the rupture of the fibrillse at interme- 
diate parts, as a, b , but some fibrillse remain attached to the sarcolemma 
at a. Bullse are formed, c. The transverse strise are much disarranged 
by the irregular contraction, and are besides so exceedingly fine in some 
parts that they cannot be represented. 
Fig. 76. Primitive fasciculus of the Newt {Triton palustris), contracted in water, 
showing the sarcolemma elevated extensively by the fluid, and thrown 
into transverse folds, which are independent of the fibrillse. 
Fig. 77- Margin of a primitive fasciculus from the Chaffinch ( Fringilla coelebs), 
contracted in water ; the sarcolemma raised in vesicles. 
Fig. 78. Another, with the adhesions of the sarcolemma to the fibrillse more exten- 
sively ruptured, and a bulla formed. 
Fig. 79- A similar specimen from the fore-arm of the human subject, the limb 
having been amputated in consequence of a severe injury. 
Fig. 80. Primitive fasciculus from the Mouse, contracted in water. The sarco- 
lemma much raised by the fluid. 
Fig. 81. Primitive fasciculus from the Libellula depressa, bent, probably by the 
instrument. At the concavity of the bend the strise are approximated 
and the fasciculus is puckered irregularly. 
Fig. 82. Primitive fasciculus from the Blue Bottle Fly {Musca vomitoria ), partially 
contracted. 
Fig. 83. Primitive fasciculus from the Staghorn Beetle, contracted in different de- 
grees. The thickening of the fasciculus everywhere corresponds with 
the amount of the approximation of the strise. 
Fig. 84. Primitive fasciculus from the land Lizard {Lacerta agilis), partially con- 
tracted in syrup , showing approximated strise and increased thickness, but 
no bullse. 
Fig. 85. Broken extremity of a primitive fasciculus from the Frog, partially con- 
tracted at a, while at b the strise are more widely separated and its breadth 
is less. Here also the corpuscles are more elongated than in the con- 
tracted portion. From the same specimen as figs. 48 and 49. 
Fig. 86. Primitive fasciculus from the Eel, partially contracted in water. The 
contracted part is thickened, its strise approximated, and its sheath raised 
from its surface. At a , the strise are nine in iwooth of an inch ; at b, they 
are twenty, and at c, twenty-six in the same space. At a, the diameter 
of the fasciculus is 3770th of an inch, and at c, 33-oth. 
Fig. 87. Primitive fasciculus of the Skate, partially contracted, showing the con- 
tracted part augmented in thickness, with approximated transverse strise, 
and more evident longitudinal strise. 
