tgo FLINT GENUS. by Count de Bournon, under the names daurite, fib e ' rite, and rubellite. 2. In the collection of the Hon. Mr Greville there is a molt magnificent Tpecinven of the red..'variety* which was prefented to Colonel Symes by thelking Ava. It is undoubtedly the fineft fpecimen of thi s fofiil that exifts in any cabinet, and ftands pre-erni' nent among the riches of Mr^Greville’s great coll eC ' tion *. A particular defcription of it is given by Count de Bournon, in his Memoir on Corundum- In the- beautiful collection belonging; tarBam 11 Racknitz at Drefden, I obferved a three*fided ptb nl of the red variety, near an: inch in diameter*, and 311 inch and halfiong, which coft 400 rubles. U • * It is valued at 1000I. /.£3 , k no,/ n.Tnno'f Dur. ,i..> • • • • -j Etl '. ^ <iy.'fbimm ,x.i . 1 '!"-Oii' 1 , Z! rl 5i( 1 : . -kj ; - .vbv: ■ • 3d! o-fth . > ■ ; . TWENTY' 1