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GUY 0. HOBSON. 
The deposition and development of fat in the form of 
globules within the “ fat-cells” of the liver was followed by 
micro-chemical methods. Owing to the smallness of Inachus 
(the thoracic width averaging only T7 cm., in the total 
number observed) quantitative measurements of fat contents 
were deemed impracticable, aud recourse was had to sections 
stained with osmic or Sudan mixture. 
It is open to critics to urge that a comparative study upon 
these terms may be deceptive, but by admitting only such 
Text-pig. 1. 
Transverse section through liver-lobe of Inaclius maurita- 
nicus infected by Sacculina, showing large quantity of fat in 
the liver-cells. (Semi- diagrammatic.) 
evidence as was based upon a large or small amount of fat in 
the liver, I venture to think solid results are attained. 
If sections of a liver of a sacculinised crab be examined, 
they will invariably be found to contain a good quantity of fat. 
provided that the crab has acquired some of the characteristic 
adult female modifications (vide Text-fig. 1). The roots of the 
Sacculina will also be found to be heavily charged with fat, 
as Smith has already observed. Turning to the normal 
males and females, we find no such constant localisation of 
fat in any one type ; with an exception, to be cited later on, 
