14 HISTORY OF ASTRONOMY.

with all of which it has a nearly exadt refemblance;and though we often know no more aboutthem than about it, yet we are apt to fancy thatby being able to do fo, we fliow ourfelves to bebetter acquainted with it, and to have a morethorough inhght into its nature. But when fortie-th in g quite new and lingular is prefen ted, wefeel ourfelves incapable of doing this. The me-mory cannot, from all its Bores, callup any imagethat nearly refembles this ftrange appearance. Ifby fome of its qualities it feems to refemble, andto be connected with a fpecies which v e havebefore been acquainted with, it is by others fe-parated and detached from that, and from allthe other assortments of things we have hithertobeen able to make. It Bands alone and by itfelfin the imagination, and refufes to be grouped orconfounded with any let of objects whatever.The imagination and memory exert themfelves tono purpofe, and in vain look around all their claf-fes of ideas in order to find one under which itmay be arranged. They fluctuate to no purpofefrom thought to thought, and we remain Bill un-certain and undetermined where to place it, orwhat to think of it. It is this fluctuation and vainrecollection, together with the emotion or move-ment of the fpirits that they excite, which confli-tute the fentiment properly called Wonder , andwhich occafion that Baring, and fometimes thatrolling of the eyes, that fufpenfion of the breath,and that swelling of the heart, which we mayall obferve, both in ourfelves and others, when