Physiological Anatomy of the Lungs

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                                distinctive colours 
to be surmounted 
There is also no difficulty in making any 
number of the minutest injections of a 
more useful character, (when a suitable apparatus 
for the purpose is used) which will demonstrate 
the course and <s>distribution<\s> peculiarities of each particular set 
of blood-vessels, and in which each set of blood-vessels 
may be kept distinct, so as to be readily recognized, 
by causing them each to be filled with a different 
coloured fluid; but the real difficulty consists 
in afterwards preserving preparations, made in 
this manner, and in making microscopical 
objects from them, which would <s>afterwards<\s> at a 
future period, exhibit the anatomical facts in 
a clear and decisive manner - The size, which 
is used in these injections, continues for a consi=
=derable time to exude from the vessels and to 
infiltrate the tissue, causing at first a cloudiness 
and afterwards an opacity, which prevents the 
minuter capillaries from being distinguished. 
This opacity sometimes remains for months, but 
becomes at length <s>[text?]<\s> redissolved - 
Frequently however the preparations <s>for?<\s> are destroyed 
by efforts made with a view to hasten this process 
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Manuscript details

James Newton Heale
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Cite as

Physiological Anatomy of the Lungs, 1860. From The Royal Society, AP/43/4



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