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for free. This is an OCR edition with typos. Excerpt from book: 126
IDIOSYNCRASY (Published in the ' Indian Annals of Medicine, '
1868.) The ovary of a woman throws off a nucleated cell, which, is
named the ovum. This apparently is homogeneous in texture. If in
its course outward it does not come in contact with sperm cells of
the male, it is re-absorbed or is discharged: if it does come in
contact with these cells, then through the influence which it
receives from them, it 'attaches itself to the interior of the
womb, draws nourishment from the juices of the mother, and grows
and developes. Its growth and development consist essentially in
what is usually called differentiation of tissue and in increase in
size. Differentiation of tissue is a word used to express the
phenomena of bone, of muscle, of nerve, and of other tissues
issuing from the apparently homogeneous tissue of the mother cell;
and the extension of these to various distances and in various
directions, whereby the human shape and size are attained, are the
result common to growth and development. Now, the consequence of
differentiation in tissues is a difference in the properties and
functions of these tissues, and these differences are always
proportionate the one to the other. This truth cannot be too much
borne in mind. We have the external influences of the mother and of
the sperm cellscausing differentiation in the tissue of the ovum,
and, as a consequence of this, we have a difference in the
properties and functions of the different tissues, or, in other
words, of the differentiated portions of the homogeneous germinal
tissue. Bone does not act like muscle, neither does muscle behave
like nerve, nor the nerves like the mucous membranes. Again, as a
difference in the combinations of external influences leads to a
difference in the tissue, it follows that the tissue...
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