CORRESPONDENCE OF RAT. 23 



Sir PHIL. SKIPPON to Mr. WBA.Y. 



SIR, The effects of the transfusion are not seen, the 

 coffee-houses having endeavoured to debauch the fellow, 

 and so consequently discredit the Royal Society, and 

 make the experiment ridiculous. 



Sir PHIL. SKIPPON to Mr. WRAY. 



SIR, Yesterday there was a letter read from Dr. 

 Sampson (who is at Leyden) to Dr. King, giving some 

 notable>ebservations in the anatomy of a . . 

 near the Bodensee. Dr. Lower showed the cause of 

 blindness in horses, which is a spongy excrescency that 

 grows in one, sometimes in two or three places of the 

 uvea; which, being overgrown, covers the pupil when 

 the horse is brought into the light, but in a dark stable 

 it dilates again. A trial was made, whether a piece of 

 iron touched by a magnet would weigh more than it did 

 before it was touched : this succeeded not. A present 

 was sent from Mr. Colpresse, I think, who lives in the 

 West, being a box full of the several mineral stones, 

 clays, &c., observed there. Mr. Hooke has improved the 

 pendulum watch, by making the simple vibrations pro- 

 mote the circular motion. It is hoped the college they 

 have designed below Arundel House, towards the water- 

 side, will be finished by next Michaelmas. Dr. Moulin 

 translates the ' History of the Royal Society' into French. 

 London, Jan. 24, 1667. 



Sir PHIL. SKIPPON to Mr. WKAY. 



SIR, It is somewhat difficult for me to explain in 

 writing the new way of pendulum. There is the common 

 vibration that Hugenius invented in watches, and Mr. 



