This historic book may have numerous typos, missing text or index.
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(without typos) from the publisher. 1907. Not illustrated. Excerpt:
... bounded by any hard and fast lines and that there is no
character possessed by any tubercle bacilli in one host that may
not be found in tubercle bacilli in another host, under favorable
conditions. Is it not therefore reasonable to consider these
various types of tubercle bacilli obtained from these different
hosts as belonging to the same species of organism and showing in
alteration of form the effect of sojourn in the bodies of different
animals? May it not also be aasumed in those cases where various
types of tubercle bacilli are obtained from one animal that these
are transitional forms which have not had time or opportunity
during their sojourn to become transformed into the usual type
peculiar to this host? It is not an uncommon experience in
laboratory work to find that certain characteristics are lost by
repeated cultivations, and by the continuation of such conditions
certain characteristics become prominent which did not obtain in
the original culture. Such organisms may be returnee to their
original characteristics by injecting them into animals, and it is
therefore generally stated that these changes are due to
unfavorable environment. A more complete discussion on this subject
will be given in another paper on the transformation of tubercle
bacilli. PATHOGENESIS. VIRULENCE FOR RABBITS. In the inoculation of
rabbits for purposes of comparative study the subcutaneous method
was adopted in all cases except with a series of five rabbits used
in the work with culture Girl I. The inoculations were made on the
left side of the animal, at a point 20 mm. posterior to the
supero-posterior angle of the scapula. The amount of material
injected was 0.5 c. c. in practically every instance, and careful
endeavor was made to have this quantity represent approxima...
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|Country of origin:
John Robbins Mohler
||246 x 189 x 2mm (L x W x T)
||Paperback - Trade
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