POST-MORTEM EXAMINATIONS 
ous sizes each of which may develop into 
an egg. As an ovum passes through the 
oviduct it is first coated with an albuminous 
covering (the white of egg); lower down 
it is coated with a calcareous deposit that 
forms the shell of the egg. (Fig. 18.) 
3. Diagnosis of Disease by Post-Mortem 
Symptoms 
For purposes of diagnosis each organ 
must be examined. Note in each case if it 
is enlarged, spotted, ruptured, inflamed or 
engorged with blood. Observe if it is an 
unusual color or if it possesses any other 
symptom of an abnormal character. 
A single symptom in a single organ, un- 
less very pronounced and characteristic, 
will not be sufficient evidence for forming 
an accurate opinion as to the cause of death. 
But if the condition of the other organs and 
the symptoms before and attending death 
are taken into consideration, there will sel- 
dom be any difficulty, from a practical 
standpoint, in deciding upon the nature of 
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