A Letter to the Farmers and Graxiers of Great Britain. 343 
at the top of it, was hauled on shore with.a man in it, and then 
* back ‘again, with- wonderful facility. Three persons at a time 
might be forwarded to the shore in this seat with the greatest 
safety; andafter the crew: had been secured, property might be 
taken care of. The persons present ‘expressed their admiration 
of the principle of the invention ;. and some able sea-faring men 
amongst the company were pleased with the cork jacket, and 
greatly delighted with the new roller, which prevents the friction 
or entangling of the rope. 
'« The experiment would have been complete, had the rope 
that was conveyed across the Serpentine River been made more 
‘taught, and if the rocket which carried it across, and was fired 
*) from a musket, had more force or strength. These circumstances. 
‘might not occur again, and had nothing to do with the inven- 
tion, which is perfectly simple, and calculated to answer every pur- 
pose intended. It has this peculiar advantage, that the line can 
be thrown from the ship on shore, and the whole apparatus being 
confined in a small compass, can be ready in every vessel for im- 
mediate use.—(Aug. 7th.)” 
In this enlightened age, it cannot be too much to hope that 
every person who has any powers will use it in promoting the 
adoption of this apparatus so much approved ;—In the name of 
humanity I ¢laim it, and am, &c. 
Helston, March 18, 1819. H. TRENGROUSE. 
LIX. A Letter tothe Farmers and Graziers of Great Britain ; 
to explain the Advantages of using Salt in the various 
Branches of Agriculture and in Feeding all Kinds of Farming 
Stock. By Samuet Parxss, F.L.S. M.RU. F.S.A. Eo &c. 
[The author has annexed to his Letter a copious Appendix, to-which he 
makes very frequent reference.—Such of our readers as may be desirous 
of examining the valuable documents in which it abounds, we must for 
obvious) reasons refer to the Appendix itself. ] 
London, Feb. 15; 1819. 
Gentlemen, Ix consequence of a late enactinent of the legisla- 
ture of Great Britain in your favour, and of the share. which I 
took in the preliminary measures for.obtaining that enactment, 
I think it incumbent on me to invite your attention to the sub- 
ject, by addressing to you, in this public: manner, the following 
observations. 
The facts which I shall lay before you are of that importance 
to your’own interests, and the promulgation of them is so likely 
to promote the welfare of the whole country, that I should con- 
sider myself culpable if I omitted to give them the greatest at 
Y4 ple 
