PHILOSOPHICAL TRANSACTIOKS, '409 



'great bladder AKE, from C to K, in raising the weight from F to E, but those 

 innumerable small bladders are each distended but a very little imperceptibly 

 space, and yet produce the same effect to raise a weight from F to E. As if we 

 suppose 4 little bladders only for example sake, each of them being distended 

 from Q to L, shall all together raise the weight F to E, as well as a single large 

 one swelling from C to K : the demonstration is manifest from the view of the 

 figure, where the triangles AKE, ALB, BMC, &c., being all similar, the 

 several small sides AL, LB, BM, &c. all taken together, will be equal AK, 

 KE together, and will produce on the whole the same contraction, from F to 

 E, as the two AK, KE, though by only a 4th part of the swelling out, at L, 

 M, N, O, as of that at K. Now if instead of 4 little bladders in a fibre, we 

 substitute 4000, that fibre shall raise the weight through the space EF with the 

 4000th part of the swelling, and so of the 400,000th part, &c. 



6. Hence was at large shown : ] . The manner of the blood's circulation in 

 each particular muscle, what it contributed to this motion. 2. What the per- 

 spiration out of each muscle did towards it. 3. That there was some swelling 

 in the contraction of each muscle. 4. How every muscle in contraction grows 

 more hard, dense, and compact. 5. The necessar)' cause of every muscle having 

 its antagonist. 6. Why on a paralysis or wound of one side, the antagonist 

 presently contracts. 7' Why upon fractures it runs up. 8. Why in animals 

 killed, while the flesh is warm, there appear so many jerks and contractions of 

 muscles. 9. Why a muscle cut in the middle runs up to each end, &c. These 

 and several other particulars I endeavoured to make out at large in those lec- 

 tures ; yet only in the way of an hypothesis, not as if I did presume to believe 

 I had found out the true secret of animal motion, when I am almost persuaded, 

 no man ever did or will be able to explain either this or any other phenomenon 

 in nature's true way and method. 



^4 Specimen of a New Al-mon-ac*ybr Ever : or, A Rectified Account of Time, 

 by a Luni-Solar Year. By Dr. Robert Wood. Philos. Collect. N° 2, p. 26. • 



The garter, fig. 3 and 4, pi. 14, shows the number of days, 30, 29, 30, 



29, &c. which each of the 1 2 months of the year is to contain : and in the 

 buckle is discovered, through a hole, the days of a 13th month, 31, 30, 31, 



30, &c. to be added to the years 2, 5, 7, 10^ 13, 15, 18, 21, 24, 26, 29, 32, 

 34, 37, in all to 14 of 38, as in a cycle behind ; which being supposed move- 



* AUmon-ac. — Our ancestors used to carve the courses of the moon of the whde year upon a 

 square stick, which they called an Al-mon-aght, that is, Al-moon-hecd. Verstegan, p. 58. The 

 Dutch Al-maen-acht imports the same. . 



