ANATOMY. 



They are chords, which rise from the 

 brain, the immediate residence of the 

 mind, and disperse themselves in branches 

 through all parts of the body. They are 

 intended to be occasional monitors against 

 all such impressions as might endanger the 

 well-being of the whole, or of any parti- 

 cular part, which vindicates the Creator 

 of all things in having actually subjected 

 us to those many disagreeable and pain- 

 ful sensations, which we are exposed to 

 from a thousand accidents in life. 



Further, the mind, in this corporeal 

 system, must be endued with the power 

 of moving from place to place, that she 

 may have intercourse with a variety of 

 objects ; that she may fly from such as 

 are disagreeable, dangerous, or hurtful, 

 and pursue such as are pleasant or use- 

 ful to her. And accordingly she is fur- 

 nished with limbs, and with muscles and 

 tendons, the instruments ofmotion, which 

 are found in every part of the fabric 

 Avhere motion is necessary. 



But to support, to gite firmness and 

 shape to the fabric, to keep the softer 

 parts in their proper places, to give fixed 

 points and the proper direction to its mo- 

 tions, as well as to protect some of the 

 more important and tender organs from 

 external injuries, there must be some 

 firm prop-work interwoven through the 

 whole. And, in fact, for such purposes 

 the bones are given. 



The prop-work must not be made into 

 one rigid fabric, for that would prevent 

 motion. Therefore there are a number of 

 bones. These pieces must all be firmly 

 bound together, to prevent their disloca- 

 tion, and this end is perfectly well an- 

 swered by the ligaments. The extremi- 

 ties of these bony pieces, where they 

 move and rub upon one another, must 

 have smooth and slippery surfaces, for 

 easy motion. This is most happily pro- 

 vided for by the cartilages and mucus of 

 the joints. 



The interstices of all these parts must 

 be filled up with some soft and ductile 

 matter, which shall keep them in their 

 places, unite them, and at the same time 

 allow them to move a little upon one an- 

 other. This end is accordingly answered 

 by the cellular membrane or adipous 

 substance. 



There must be an outward covering 

 over the whole apparatus, both to give it 

 ft firm compactness and to defend it from 

 a, thousand injuries, which, in fact, are the 

 very purposes of the skin, and other in- 

 teguments. 



As she is made ibr society and inter- 

 course with beings of her own kind, she 



must be endued with powers of expres- 

 sing and communicating her thoughts by 

 some sensible marks or signs, which shall 

 be both easy to herself, and admit of great 

 variety. Hence she is provided with the 

 organs and faculty of speech, by which 

 she can throw out signs with amazing fa- 

 cility, and vary them without end. 



Thus we have built up an animal body, 

 which would seem to be pretty complete ; 

 but we have not yet made any provision 

 for its duration : and, as it is the nature 

 of matter to be altered and worked upon 

 by matter, so in a very little time such a 

 living creaturemustbe destroyed, if there 

 is no provision for repairing the injuries 

 which she must commit upon herself, and 

 the injuries which she must be exposed 

 to from without. Therefore a treasure of 

 blood is actually provided in the heart 

 and vascular system, full of nutritious and 

 healing particles, fluid enough to pene- 

 trate into the minutest parts of the animal. 

 Impelled by the heart, and conveyed by 

 the arteries, it washes every part, builds 

 up what was broken down, and sweeps 

 away the old and useless materials. 



Hence we see the necessity or advan- 

 tage of the heart and arterial system : the 

 overplus of this blood, beyond what was 

 required to repair the present damages 

 of the machine, must not be lost, but 

 should be returned again to the heart ; 

 and for this purpose the venal system is 

 actually provided. These requisites in 

 the animal explain, a priori, the circula- 

 tion of the blood. 



The old materials, which are become 

 useless, and are swept off' by the current 

 of blood, must be separated and thrown 

 out of the system. Therefore glands, the 

 organs of secretion, are given, for strain- 

 ing whatever is redundant, vapid, or noxi- 

 ous, from the mass of blood: and, when 

 strained, it is thrown out by excre- 

 tories. 



Now, as the fabric must be constantly 

 wearing, the reparation must be carried 

 on without intermission, and the strainers 

 must always be employed : therefore 

 there is actually a perpetual circulation 

 of the blood, and the secretions are al- 

 ways going on. 



But even all this provision would not be 

 sufficient; for that store of blood would 

 soon be consumed, and the fabric would 

 break down, if there were not a provision 

 made for fresh supplies. These we ob- 

 serve, in fact, are profusely scattered 

 round her n. L he animal and vegetable 

 kingdoms; and she is provided with hands, 

 the finest instruments that could have 

 been contrived for gathering them, and 



