which gave you the Se/<-^;^^ of Cornwall: In which fpecial notice 
ought CO be taken, r* Of the profit compared to Tin and Fiftj. 
2. That the Land-carriage, (bcfides the charge of Lighterage^ 
amounts co about 32000 /. per annum, 3. That fuch a vaft dif- 
ference of the Air isfownd in fo little a diftance , that a man may 
in an Afternoon travel as it were out of Sfain into the Orcades. 
In which latter note, beiides the argutenefs , a deep hint in Phi- 
lofjphy. I have remarked Springs and Soyle to the very fame 
purpofe. Note alfo pag. 296. this propofal for Chymifts, to 
0fen the body of Sand, &c. We find alfo by common Experience, 
that fome Stones, and fome Gravel (as fuch J without other cir- 
cumftances, are much more impregnating than other. And I 
found, how to place fome Stones above ground, fome at a certain 
depth under ground,for furcr fertility 5 and fo for Sand and Gra- 
vel alfo. 
But I wifii, you could meet an intelligent man, who could find 
out fome probable ground to proceed in a way of Calculation, 
What profit may be raifed by any late Invention or any olddevife 
for Soyle 5 for example , 
J. The Land-carriage of Sea-fand in Cornrvall 32000/. ^rr 
annum. 
2. The Lighterage. Some grounds are offered in the faid Traft 
of yours for a probable fum. 
3, What profit the Husbandman there expefls, and, commumhui 
annk^ enjoys/ 
; 4, How many Labourers are by the fame, or ot her appendages, 
employed and rewarded ? For, if nothing were gained a- 
bovea narrow lively hood to the Husbandman ; yet the fum 
for Lighterage and Carriage is great, towards the employment 
of the poor, which is very much homphlko. 
