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

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                                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 
                            
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Manuscript details

Author
George Rainey
Reference
PT/56/8
Series
PT
Date
1857
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On the Structure and Development of the Cysticercus cellulosae, as Found in the Pig, by George Rainey, 1857. From The Royal Society, PT/56/8

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