( ?4i ) 
A ^ L E S the ] 3 iiK 0 )uettcaI Altitudes at 
Zurich w Switzerland in the Year o%. ohfery' 
' ed hy Dr. Joh. Ja. Scheuchzer, ' F, (?(. 5 . a?id 
at Upminrter in England, obfer-Ved at the 
Jame time hy Mr. W. Derham, F. 5 ^. S. as alfo 
the %ain at Pila hi Italy in 1707. and 1708. 
ohferyed there hy Dr. Michael Angelo Tilli, ' 
F. R. S. and at Zurich in 1708. and at 
Upminfter in all that time : With ^marks on 
^ the fame Tables^ as alfo on the Windsy Fleat 
and Coldy and ciiVeys other Matters occuvrin^ in 
tho/e three diffcYent Farts of Europe. Dy 
Mr. W. Derham, F^eHor of Upminftcr. 
. ^ ' - 
I T being the Pleafure of our mofi: iiluftrious Society, 
^ to put into my hands (according to Dr. Scheuchzers 
defire) his Obfervations of the Weather, &c. made at 
Zurich in the Year 1708. and having alfo my felf receivd 
from Dr. Mich. Afjgdo Tilli the quantity of Pvain which 
he obferved to fall at Pifa 5 I have accordingly compar’d 
thefe Obfervations with mine made at the fame time at 
Vpmwfler. And to reprefent them the better at an 
eafy view, I have put what I could of them into the an- 
nexed Tables. In the former of which, I have repre- 
fented Dr. Sr^eflrc/^ssfr’sasd my Barometrical Obfervations: 
In the later, his Rain Obfervations, thofe of Dr. Jl. A. 
Tilly., and mine own 5 all reduced to the fame, that is, 
our Englifh meafure, that they may the more eafily be 
feen and compar’d together. But becaufe I am not as yet 
cer- 
