1804.] Agriculture. 149

any tool or tools, implement or implements, entirely new, found to be more uſeful in any branch of agriculture than any before known for ſimilar pur- poles; a premium in proportion to the merit»

CrLass VIL--Chemistry-|

1 Starch: To the perſon who, at or before the Meeting in September 1804, hall diſcover to this Society a mode of making good ſtarch in ſuch quantities as to become generally uſeful, and at a reaſonable price, from any ſubſtance or ſubſtances not generally ufed for the ſuſtenance ot man, and not hitherto diſcovered,?ez guineas."10 produce a ſample of not leis than fifty- lüx pound.

2. Marking Sheep. To the perſon who ſhall diſcover and make known to this Society, any compoſition which ſhall be equally laſting with pitch and tar, for marking ſheep without injuring the wool; ten guileon

A trial of one year upon not leſs than twenty ſheep», and certificates of its fully anſwering the purpoſ* to be given in the firſt of July following the experiment« 3

3. Chmpsfſition for preſervim“Wood. To the perſon who, in the year 1804, ſhall deſcribe to the JatisfaQiun of this Society, a more cheap and durable compoſition than any now in common uſe, for covering and preſerving from decay barn and other outſide doors, weather-boarding, gates, ſtiles, and other implements in huſbandry; zöree guineas.

4. Producing light in Mines.'Tothe perſon who ſhall conſtru& an appara- 4us or machine better than any now in uſe, for producing ſufficient light for working coal or other mines without burning candles or lamps; fe! Buineas.

A model or models of the ſaid apparatus to be produced, and claims made, at or before the meeting ot the Society in November 1 804.

CLass VILU.--ÜUSeful Arts.

1. Subſtitute for Wheaten Bread. To the perſon who, at or before the meeting in April, ſhall aſcertain, by experimental procels, to be fully(tated, the molt wholeſome and profitable mixture of flour ot other ſorts of grain, or other vegetable ſubſtances, to be uſed with that of wheat for,making bread for generalconſumption in times of ſcarcity; five guineas.

2. Preſervation of Wheat. To the perſon who ſhall on or befcre the ſecond Tueſday in November 180g, diſcovcr and make known to tle Society the cheapelt and moſt effe&ual method, not hitherto known or pradtiſcd, of pre- venting wheat in ſhips and ſtore-houſes from contracting mult, or being damaged by the weevil or otherwiſe; or for relſtoring damaged wheat to a wholetome ftate 3; to be verified by adual experiments; /e7 guinea,

3. Italian Method of killing Cattle. Five Guineas will be given to the but. cher who, in the year 1804, ſhall kill the greateſt number of horned cattle, ſheep and hogs, in the method, and with the inſtrument uſed for that pur- poſe at Naples, and recommended by Sir William Hamilton in his letter to this Society. The number of hoined cattle ſv Killed to be not lels than fifty, and ot hogs and ſhecp not leſs than one hundred each. The inſtrument may be ſeen at the Society's rooms, with diredions how to uleit.

4 Rats and Mice. To the perſon who ſhall diſcover and impart to the So- ciety, on or before the firſt ot November 1804, a more ſpeedy and certain method than any=yet known of deltroying rats and mice by lome mechanical contrivance, or by lome ſubſtance not detrimental to uſeful animals or to the human»c-; five guineas.

5. Deſtroping Gruhs in Land. To the perſon who ſhall diſcover and com- municate to the Socicty, a method of deltroying thoſe large grey grubs in paſture and arable land, from which proceeds the cock-chaffer beetle, or any other grubs injurious to crops, that'hall on experiment be found the eaſieit, molt eff-&ual, and leaſt prejudicial to the grats, or other produce of luch lands; zen gatzeas.