SSS Fubninat'mg Silver, — Astronomrj. - 



XII. Measles, chicken-pox, hooping-cough, and other 

 disorders, may intervene during the vaccina, without, in 

 general, varying its progress*. 



FULMINATING SILVER. 



In our last we gave (from M. X&n Mons's Journal) a 

 letter from Brugnatelli, announcing as new a preparation of 

 & fulminating silver. Having since compared it with a pro- 

 cess dcsciibed by the honourable Mr. Howard at the end of 

 tis interesting paper on Fulminating Mercury, published 

 in the Philosophical Transactions, (also in this work, see 

 vol. vii. p. 126,) we find it to be exactly the same. 



ASTRONOMV. 



Tlie weather was very favourable for observing the solar 

 eclipse on the morning of the 17th ; but owing to an error 

 in the Nautical Ephemeris, many people were disappointed 

 of an opportunity of seeing the commencement of the phae- 

 nomcnon. 



Geocentric motion of Pallas for September 1 803. 



* It has been found proper to require ha]f-a-guinea for arming three 

 lancets, or for matter on thread or glass, but each practitioner may be 

 supplied with mTtter as often as wanted for his own use only, by paying 

 on? guinea annuully, the expense of postage and porterage being dis- 

 ciiargtd i>y those who apply. 



The Institution does not warrant an v matter but that which has on 

 the package the impression of the seal of the Institution, namely, a cow, 

 with the motto FeJtciorei iiisait. 



