1817.] On the Mineralogical Description of Perth. 219 
In. 64ths. 
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February ..... BSH Hath Stach (he 1 -43 
March ....0.% Sa aS Se he 2 338 
April ..... haithe Fd) creer .. 1 50 
May? ss eg Fe Us OF os Sy CHIE 3 34 
Faneie 6 PIAS. OO ER 2 18 
» a a dad bi era et a ea oe 2 129 
August ...... sANS ae, Sew e030 
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Mivemaben 5 85 ok. 0 CRW 1 56 . 
December iigcgwe £3). os #8 aeRO 06 
34 61 
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TATE ST ER IN PERE ARES tS Mes 
ArticieE VIII. 
On the Mineralogical Description, and Mineral Map of the County 
of Perth, which was in the Contemplation of Lord Gray and 
others, who proposed to subscribe thereto, in 1814. By John 
Farey, sen. 
(To Dr. Thomson.) 
SIR, 
Tue plan which Professor Jameson drew up, at the request of 
Lord Gray, in 1814, for a mineralogical description of the county 
of Perth, in which no mention of a mineral map occurs, having 
been inserted in the Annals of Philosophy, vol. vii. and referred to, 
with marks of your commendation, Annals, ix. 82, I presume to 
beg the favour of you to give an early place in the Annals to a copy 
of the answer which I returned to the application received through 
a mutual friend of his Lordship and myself, Mr. Atkinson, of 
Bentinck-street, for making a mineral map, &c. of that county ; to 
which copy I beg the liberty of now adding three short notes : and 
am, Sir, your very obedient humble servant, 
Howland-street, Jan. 8, 1817. Joun Farey, sen, 
eg 
(Copy.) 
DEAR SIR, London, July 11, 1814, 
“ Ihave considered the subject of the proposed mineral survey 
of the county of Perth, on which you mentioned my Lord Gray’s 
' application, through you, and beg you will inform his Lordship 
