2 8 Sir Phil. Skippon to Mr, Wray. 



the Fellow, and fo confequently difcredit the Royal 

 Society, and make the Experiment ridiculous. « 



Sir VhiL Skippon to Mr. Wray. 

 SIR, 



YEfterday there was a Letter read from Dr. Samp- 

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

 fome notable Obfervation$ in the Anatomy of a 



near the Bodenfee. Dr. Lower fhewed the Caufe 

 of blindnefs in Horfes, which is a fpongy Excrefcen- 

 cy that grows in one, fometimes in two or three 

 places of the Uvea ; which being overgrown, covers 

 the Pupill when the Horfe is brought into the light, 

 but in a dark Stable it dilates again. A tryal was 

 made, whether a piece of Iron touched by a Mag- 

 net would weigh more then it did before it was 

 touched : This fucceeded not. A Prefent was fcnt 

 from Mr. Colprejfe ( I think ) who lives in the W%8 $ 

 being a Boxfull of the feveral Mineral Stones, Clays, 

 £s?<r. obferved there. Mr. Hooke has improved the 

 Pendulum Watch, by making the fimple Vibrations 

 promote the Circular Motion. It is hoped the Coll. 

 they have defigned below Arundel Houfe, towards the 

 Water- fide, will be finiihed by next Michaelmas. Dr. 

 Moulin tranflates the Hiftory of the Royal Society in- 

 £0 French* 



London, Jan. 24. 1667. 



Sir Phil Skippon to Mr. Wray. 

 SIR, 



IT is fomewhat difficult for me to explain in Wri- 

 ting the new way of Pendulum. There is the 



common 



