SB Notice of Miner ahgicalJourneySj 
out number, in every possible stage, both dried and in spirits, 
JFor Mr Roscoe, Mr Lambert, Sir J. E. Smith, Mr Rudge, Dr 
Graham, Dr Taylor, and Colonel Beaumont, I am making 
large collections, but, above all others, for the Court of Direc- 
tors, and his Majesty’s garden at Kew. I hope I shall have 
some things to add that are new eveji to your ample collection, 
because I ought at least to have that advantage, in consequence 
pf the matchless facilities which I enjoy, and of which> I know 
well, you were deprived, 
Art. "KV, ’--^Notice of Mineralogical Journeys^ and of a Mine- 
ralogical System^ by the late Rev. Dr John Walker, Pro- 
fessor of Natin-al History in the University of Edinburgh. 
I BEGAN to collect minerals in the year 1746, when attends 
ing the Natural Philosophy Class, and was first led to it by the 
perusal of Mr Boyle’s works, and especially his Treatise on Gems. 
In this pursuit I was accompanied by two of my most intimate 
companions at the time, Edward Wright and Alexander Wight, 
We often traversed the King’s Park, the sea^shores between 
Cramond and Musselburgh, and visited the quarries and coah 
leries near Edinburgh ; but had no book at the time, to direct 
us concerning the species of minerals, but Woodward’s Cata^- 
logues. After studying the works of Boyle, Becker, Stahl, 
Boerhaave, and some others, I attended Dr Plumer’s course of 
chemistry in the year 1749, and became still fonder of minera- 
logy. 
Soon after this, I removed to Newhall, where I had the op- 
portunity of observing and collecting the minerals in the south- 
ern parts of Lothian, and in Tweeddale. The year after, on a 
visit of two or three months at Moffat, I had the same opportu- 
nity in Annandale, The Hartfell Spaw was then newly disco- 
vered ; and the experiments I made upon it, were published in 
the Philosophical Transactions. The most interesting part of 
the paper, w^s the discovery of the particular tnineral from which 
that water derives its mineral contents. 
In the year 1753, I went to Galloway ; and, till the year 
1757, had occasipn to obtain an extensive view of the mineral^ 
