On the Structure and Development of the Cysticercus cellulosae, as Found in the Pig, by George Rainey

                                add, that the vermicular form of those 
cysticerci whose development commences 
in the short muscular fibres of the tongue 
are of a shape resembling very much 
those of the heart. <s>which has just been 
described as covered with cilia.<\s>
The investing membrane which has just 
been described as covered with cilia, is 
entirely filled with corpuscles, all of one 
kind, remarkably characteristic & differ-
ing only according to their states of develop-
ment. The perfect cells are best seen 
in the middle of an entozoon, but their 
mode of formation, & the subsequent chan=
ges which they undergo, must be examined 
in those parts which are increasing most 
rapidly as in the growing ends of an ani=
malcule.
The first appearance indicative of 
an increase in the length of an animal=
cule is a thinning of the investing membrane, 
& a separation or partial detachment 
of the cilia-like fibres at the growing end. 
Next a clear space of the form of the part 
which is about to be added is perceptible 
a little in advance of this extremity, ap=
parently the result of a very fine mem-
branous protrusion. This contains numerous 
dark molecules of different forms & sizes 
mixed with granules more or less per=
fectly spherical, the most perfect of 
these globular bodies are those which 
are nearest to the perfectly formed part 
of