182 farmers' and mechanics' journal. 



or 80 of Reaumur, which is that of boiling, besides it has a safety- 

 valve. 



The economy of this machine is very great ; it can propel a 

 boat of 25 tons, twelve hours with four bushels of charcoal. As to 

 its speed it is astonishing ; the wheels which act directly on the 

 axle of the spar-wheels, make 190 revolutions in a minute! But 

 what is more surprising is, that the machine, comprising fire-place, 

 boilers, generator, in short, every thing, occupies the space only 

 of six feet by 27 inches ! 



By way of encouragement, the Legislature of Louisiana passed 

 a law, authorizing Mr. L. to raise a sum of money by lottery, for 

 the purpose of fully testing his improvements, reserving to the 

 State, the right of making use of engines on the principle for which 

 he had a patent. [Southern paper, 



• - ' ■ , ■ m stc: 



ACRICULTlTRi:. 



HEMP. 



[Concluded from page 161.] 

 We insert a few more remarks relative to the culture and man- 

 agement of Hemp, hoping that another year will find our industri- 

 ous farmers actually engaged in the business of cultivating, and 

 preparing this article for commerce. The profit, which cannot but 

 arise from the article in question, will of itself be a sufficient stimu- 

 lus to engage them in the undertaking; but as an additional incen- 

 tive, we would refer them to the very liberal premium offered by 

 the Trustees of the Lyceum, for the largest and best crop of hemp, 

 raised and cured within the State, during the year 1829. You 

 will find it noticed on the last page of the present number. 



Extract of a letter from a manifacturer of Canvass, at Paterson^ 



New Jersey, dated 9th August, 1824, to the Hon, Secretary of the 



Mivy. 



" I should have before replied to the letter which you did me 

 the honor to address to me, under date of the 31st ultimo, but, be- 

 ing in a great measure unacquainted with the subject on which 

 you required information, I have been since engaged in procuring 

 as much as opportunity aflforded me, and I have now the honor to 

 communicate the result of my inquiries. I would here, however, 

 observe, that, previous to the receipt of your letter, I had the 

 honor to receive one from the President of the Board of Navy 

 Commissioners, on the subject of the growth and manufacture of 

 flax, which having answered, if it were necessary to your purposCj 

 I could, and would, with pleasure, furnish a copy. 



" It appears, from all I can learn, that hemp may be produced in 

 any soil ; in Russia, it is indigenous, found in all the south and 

 middle parts, and even on the Uralian mountains, though the gene- 

 ral opinion seenis to be, that the greater crops are produced from 



