10 ANTHROPOLOGY. 
lymphs, the fluids of the eye, and the ear wax; fatty substances, either 
separate in the cellular tissue and the cavities of bones, or united with other 
matters, as in chyle, in the brain, in milk, bile, &c.; osmazome, the substance 
to which the peculiar smell and taste of roasted meat is due; jelly ; homa- 
tine (coloring matter of the blood); pigmentum nigrum in the eye, the skin 
of negroes, &c., &c. 
The shamed of the body, as above enumerated, are combined into vari- 
ous tissues, of which the following are those most generally distinguished : 
dermoid ; cartilaginous ; fibro-cartilaginous ; fibrous ; nervous ; osseous ; cellu- 
lar; adipose; vascular; muscular; erectile; mucous; serous; glandular. 
These various tissues, whose combination constitutes the various organs 
of the body, will be treated of more fully hereafter. The explanation of 
the cellular tissue, however, may here find its most appropriate place. ‘This 
consists of a soft transparent substance, capable of being drawn out into 
threads, and forming sheets or fascia, in many places rendered opake by a 
closely compacted web of vascular tissue. It is found beneath the skin ; 
between the different muscles, and even separating their finest fibres ; in 
vesting, and in part constituting, various organs; in fact there-is scarcely 
any part of the body in which it may not be detected. It is eminently 
characterized by the presence of cellular cavities, which appear to commu- 
nicate freely with one another, and thus permit the ready passage-of fluids. 
5. ARRANGEMENT OF SPECIAL SYSTEMATIC ANATOMY... 
The problem in Systematic Anatomy is to describe the highly various 
parts of the human body, in such order of succession as shall correspond 
most nearly to their actual combinations, and most clearly exhibit their 
various relations and functions. The arran gement which we have fixed on 
as answering the necessary conditions supposes six general heads, as. fol- 
lows: 
1. THE Bones (Osteology). .This has reference to the structure of the 
central firm basis of the body, the osseous system, a framework inclosed by 
soft parts, and furnishing cavities which embrace the more delicate organs, 
as well as constituting a series of levers and fulcra, by means of which the 
muscles are enabled to bring about extensive and rapid as well as delicate 
motions. 
2. THe Ligaments (Syndesmology). This includes those parts of the body 
by means of which the individual bones are so connected together as to 
permit of relative motions through the agency of the muscles. These two 
departments are usually treated of under one head. 
3. Tue Muscuss (Mycology). This embraces the muscular system (with 
its tendons, aponeuroses, and burse mucoss), which operates actively by 
means of its contractibility, in producing motions in the passive skeleton 
with its ligaments. 
4, THE VESSELS (Angeiology). These consist of the arboreseent or reti- 
culated tubes or channels distributed throughout the body, in which the 
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