IG3 



Premiums in MechanirJ. 



Bse ; the silver medal, or twenty guineas. Cer- 

 tificates of the making such paper, an account 

 of the process, and one ream of the paper, to be 

 produced on or before the second Tuesday id 

 January, 1803. 



132. Taking Porpoises. To the people 

 in any boat or vessel, who, in the year 1802, 

 ahull take the greatest number of porpoifes on 

 the coast of Great Britain, by gun, harpoon, or 

 any other method, not fewer than thirty, for 

 the purpose of extracting oil from them; the 

 gold medal, or thirty pounds. Certificates o{ 

 the number, signed by the persons to whom 

 they have been sold or delivered for the purpose 

 of extracting the oil, to be produced to the 

 Society on or before the last Tuesday in Ja- 

 nuary, 1803. 



133. On, from Porpoises. To the per- 

 son who shall manufacture the greatest quantity 

 of oil from porpoises taken on the coast of 

 Great Britain, in the year 1802, not less than 

 twenty tons ; the gold medal, or thirty pounds. 

 ■Certificates of the oil having been made from 

 porpoises acrually caught on the coast of Great 

 Britain, and two gallons of the oil as a sample, 

 to be produced to the Society on or before the 

 last Tuesday in February, 1S03. 



PREMIUMS IN MECHANICS. 

 ' 134. Gunpowder-Mills. To the per- 

 son who, in the year 1802, shall invent and 

 bring to perfection the most effectual method 

 cf so conducting the works of gunpowder-mills, 

 in the business of making gunpowder, as to pre- 

 vent explosion ; the gold medal, or one hun- 

 dred guineas. Certificates and accounts of the 

 method having been put in practice in one or 

 more gunpowder-mills in this kingdom, and 

 that it promises, in the opinion of the best 

 judges concerned in such works, to answer the 

 purpose intended, to be produced to the So- 

 ciety on or before the first Tuesday in Feb. 1 803. 

 N. B. As an encouragement to persons to 

 turn their thoughts to improvements of this na- 

 ture, if any should be made on the present me- 

 thod of conducting the business of gunpowder 

 making, which fall short of the total preven- 

 tion of explosion, and they are sent to the So- 

 ciety for the sake of humanity, the papers so 

 sent in will receive due consideration, and such 

 bounty or reward will be bestowed thereon as 

 they appear to merit. 



135. Transit-Instrument. To the per- 

 son who shall invent and produce to the Society 

 a cheap and portable transit-instrument, which 

 may easily be converted into a zenith-sector, 

 capable of being accurately and expeditiously 

 adjusted for the purpose of finding the latitudes 

 and longitudes of places, and superior to any 

 portable traniit-instrument now in use; the 

 gold medal, or forty guineas. To be produced 

 on or before the last Tuesday in Jan. 1803. 



136. Taking Whalis s'v the Gw 

 Harpoon. To the person who, in the year 

 1 802, shall strike the greatest number of whales, 

 not fewer than three, with the gun-harpoon ; 

 ten guineas. Proper certificates of the striking 

 such whales, and that they were actually taken 

 in the year 1802, signed by the master, or by 

 the mate when the claim is made by the toaster, 

 to be produced to the Society on or before the 

 last Tuesday in December, 1802. 



137. Family Mill. To the person wh» 

 shall invent and produce to the Society the best 

 constructed mill for grinding corn for the use of" 

 private families, or parish-poor; the construc- 

 tion to be such as to render the working of the 

 mill easy and expeditious, and superior to any 

 hitherto in use; the gold medal, or thiity gui- 

 neas. The mill, and certificates of its having 

 been used to good effect, to be produced to the 

 Society on or before the first Tuesday in Fe- 

 bruary, 1 803. 



N. B. Cheapness and simplicity will be con- 

 sidered an essential parts of its merit ; and the 

 mill, or the model, to remain with the Society. 



138. Machine for raising Coals, 

 Ore, &c. &c. To the person who shall invent 

 a machine for raising coals, ore, &c. from 

 mines, superior to any hitherto known or in 

 use, and which shall produce the effect at a 

 less expense than those already Known or in 

 use ; the gold medal, or fifty guineas. A mo- 

 del of the machine, made on a scale uf not less 

 than one inch to a foot, with a certificate that a 

 machine at large on the same construction has 

 been advantageously used, to be produced to the 

 Society on or before the second Tuesday in. 

 February, 1803. 



139. Machine for raising Water. 

 To the person who shall invent a machine on a 

 better, cheaper, and more simple construction 

 than any hitherto known or in use, for raising 

 water out of wells, &c. from a depth of not less 

 than fifty feet; the gold medal, or forty gui- 

 neas. Certificates of the performance of the 

 machine, and a model of it, on a scale of not 

 less than one inch to a foot, to be produced to 

 the Society on or before the first Tuesday in 

 February, 1803. 



140. Machine for making Bricks. Td 

 the person who shall invent the best and cheap- 

 est machine for making bricks, superior to any 

 hitherto known or in use, whereby the labour, 

 and expense of making bricks in the usual 

 mode, by hand, may be greatly diminished ; 

 forty guineas. A model, with certificates that 

 a machine at large, on the same construction, 

 has been used to good effect for the purpose of 

 making bricks, and that at least one hundred 

 thousand statute -bricks have been made there- 

 with, to be produced to the Society on or be- 

 fore the first Tuesday in March, 1803. 



141. Boring and Blasting Rock*. 

 To the person who shall discover to the Society a 



