tiplying this Value per Ounce', by the Number of 
Ounces the Stone fuftains, will give the Value in Mo- 
ney of the Stone propofed. 
Vh An Account of a !Book, entkuledy Jo. Frider. 
Weidleri Obfervationes Meteorological Sc 
Aftronomicx, Annorum 1728 Sc 1729, 
<jrc. Wittemberg^, Anno i/ip. 
HE Author, after dedicating his Trads to the 
Royal Society, gives a Defcription of the parti- 
cular Sort of Barometer, Thermometer, Hygrometer, 
and Hyetometer, which he made ufe of in the fubfe- 
quent Obfervations. The firft of thefe is a Diary of 
the Weather, from the Vernal Equinox of the Year 
1718, to that of the Year 1719 ; containing ,the daily 
State of the Barometer, Thermometer, Wind and 
Weather, together with the Quantity of Rain during 
that Time. To this he annexes fome feleB Meteoro- 
logical and Aftronomical Obfervations, which he de- 
fcribes more at large. 
The firft he takes Notice of is a remarkable Hah 
round the Moon, on February lo, 1728, at forty-five 
Minutes paft Seven in the Evening, when the Moon 
was not far diftant from the Meridian, and about her 
firft Quarter. The Diameter of the Halo occupied 
about 47 Degrees, being extended from ^ in Procyon 
to Capella towards the Weft. Its Arch was 4^ Deg. 
broad, as far, for Inftance, as a and ^ in Procyon are 
from each other. Within it was red, and towards 
the Extremity was pale 5 exhibiting entire a beautiful 
Spedacle 
