l66 PHILOSOPHICAL TRANSACTIONS. [aNNO 1726. 



Observations on the Spot Plato, in the Moon, Augml It), 1723, iV. S. By the 

 same. N" 396, p. 181. 



The raised edges in the border of the spot were enlightened by the sun, and 

 shone with the usual brightness. The bottom of the spot was dark, the sun's 

 rays not having yet reached it : but a reddish kind of hght was projected over 

 the middle area of the spot, as in fig. 13, pi. 3, as if some hole was in that part 

 of the edge a opposite to the sun, through which a ray of the sun entered. 



It is imagined that this appearance may be either owing to a hole in the 

 border, as just mentioned, or to the refraction of some solar ray in the summit 

 of that edge, whence the ray might pervade the internal parts of the spot itself: 

 so that it would seem that the moon has some sort of an atmosphere about 

 her. 



A Remark on the new Opinion relating to the Forces of moving Bodies, in 

 the Case of the Collision of Non- Elastic Bodies. By Mr. John Eames,* 

 F.R.S. N°396, p. 183. 



The antient opinion, and most generally entertained, is, that the forces of 

 bodies in motion are as their quantities of motion, i. e. as their quantities of 

 matter multiplied by their respective celerities. 



The new opinion is, that the forces of bodies in motion are as their quanti- 



* Mr. John Eames, was a very useful member of the Royal Society, besides a general and pro- 

 found scholar, being deeply skilled in all branches of learning. He was a native of London, and 

 educated at Merchant-Taylors' school. He afterwards pursued a course of academical studies, with 

 a view to the ministry among tlie Dissenters ; but he never preached more than one sermon, when, 

 from excessive diffidence, he was so exceedingly agitated and confused, that he was scarcely able 

 to proceed. There was also a great defect in his organs of speech, and his pronunciation was ex- 

 ceedingly harsh, uncouth, and disagreeable. Hence, quitting the pulpit entirely, Mr. E. devoted 

 himself to the instruction of young men whose education for the pulpit, among the Protestant 

 Dissenters, was patronized and assisted by the Independent Fund. His department included the 

 languages, mathematics, with moral and natural philosophy ; to wliich were afterwards added divi- 

 nity and the oriental languages. Dr. Watts, who dedicated to Mr. Eames his treatise on Geography 

 and Astronomy, said of him that he was tlie most learned man he ever knew. His scientific learn- 

 ing procured him the esteem and friendship of Sir Isaac Newton, who introduced him to the Royal 

 Society. Mr. E. was one of those learned men who wrote in defence of Newton's doctrine of 

 moving forces ; and he was also usefully employed by the R. S. with other learned members, in 

 preparing and publishing an Abridgment of the Philos. Trans. Among those persons who were 

 formed under Mr. E. for the stations which they afterwards filled witli reputation and honour, 

 were Dr. Furneaux, Dr. Price, and Dr. Savage. Archbishop Seeker also received part of his aca- 

 demical education under this learned man, who died suddenly, June 29, 174.V. Mr. Eames'* 

 contributions to the Philos. Trans, are in vols, 34, 35, and 40. 



