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Vn. An Account of an Improvement on the 
Terreftrial Globe, hy Jofeph Harris, Gent. 
HE Globe is juftly reckoned very ufeful and 
inftmdive, both as a general Map, and alfo 
for explaining the firft Principles of Geography, 
and the fpherical Dodrine of Aftronomy. By this 
Inftrument it is eafy to find the Length of the Days, 
and their Increafe and Decreafe, in all Places, and at 
all Times of the Year. But this is not ufually per- 
formed in fuch a manner as at the fame time to 
explain how thefe Thanomena arife from the Motion 
of the Earth, which is the principal thing Beginners 
efpecially fhould have in View : Nor can this be 
remedied, at leaft but in few Cafes, as Globes are 
commonly fitted up j for the Axis and the horary 
Circle prevent the Brafs Meridian from being move- 
able quite round in the Horizon, which it ought to 
be, and fo indeed prevent the Globe from being 
univerfally ufeful, even in the common way of con- 
fidering it. 
It is nov/ about Six Years fince I removed this Im- 
pediment, by placing two horary Circles under the 
Meridian, one at each Pole. Thefe Circles are fixed 
tight between two Brafs Collars placed about the 
Axis, but fo that they may be eafily turned by the 
Hand when the Globe is at Reft ; and when the Globe 
is turned, they are carried round with it, the Meri- 
dian ferving as an Index to cut the horary Divifions. 
The Globe, being thus fitted, ferves readily for folving 
of Problems in South as well as in North Latitudes, 
as 
