228 



A. D. 1791. 



with the greatell: expedition : and he alfo invented an improvement in 

 the conftrudion of chain-pumps. 



In New England a very fimple method was difcovered of preferving 

 timber from being deflroyed by the worm, which confifted only in 

 foaking it well in oil. 



Several improvements were alfo made in the manufadures of cotton, 

 linen, &c. One was an invention in Ireland of a loom, which weaves two 

 webs of cotton or linen at once, more perfectly and more expcditioufly 

 than a fingle web can be made in a common loom. Another was a new 

 method of bleaching, whereby a piece of cotton may be bleached in the 

 mofl complete manner in about five hours, or a piece of linen in about 

 forty- eight hours, without expofing them to the fun or air, or doing the 

 fmaliefl injury to the fabric of the goods. Mr. Locket of Donnington in 

 Berk-fhire alfo difcovered a method of making cloth of the flalks of hops. 



The followmg flatement of the Britifh velfels employed in the flavc 

 trade, and of the number of negroes imported into, and exported from, 

 the Britilli colonies in the Weft-Indies, is extraded from the official ac- 

 count made up for the ufe of the houfe of commons by Mr. Irving, in- 

 fpedor-general of the imports and exports of Great Britain " 



* 



Jamaica 



Years. 

 89 



790 



ri789 

 < 1790 

 L1791 



TORTOLA J/t)! 



S'. Christopheks . . 1789 



MONTSERRAT 1/90 



^^^^'^^^ ,791 



S9 

 90 



Dominica 



S'. Vincents 



Grenada . 



f 1/89 

 •I 1791 



fi/sg 



■< 1790 

 '-1 791 



ri7S9 

 < 1790 



li-qi t 

 ri7S9 

 < 1790 

 I1791 



ri789 



■< 1790 



'^1791 



Easbados 



Bahamas l/gi 



Totals in . . 



* The number of flaves, who died on the pafT- 

 age, is returned by a few of the vcfi'Lls, but gen- 

 erally ncglcCled. The greateft number of draths 

 appearing is lyo in a veffel of 28^^. tuns, whicli 

 delivered 220 flaves in the year 1789. In the ar- 

 rivals at Grenada one veil'el of 179 tuns is njarktd 

 as bringing ;io negroes in the year 1789, (Did the 

 whole cargo perilt on the pafTage ?) and another 

 of 200 tuns is marked as bringing^.v negroes in 

 the year 1790. — Mr, Irving thought it necefiary 



Negroes 

 exported. 



2,030 



1,970 



2,915 



44 



332 



1 



140 



2,357 

 1,69a 

 2,099 

 53 

 611 

 1,346 

 3,440 

 3,143 

 6,362 



399 



72 



100 



8,764 

 7,542 

 1,427 



to obferve, that ' the very imperfedl returns frott; 

 * the Weft-Indies put it out of his power to make 

 ' up a complete account.' Such as it is, a com- 

 parifon of it with that inferted in p. 155 will fljow 

 that the importation of negroes was confiderably 

 IclTened in fome of the iflands, and that the exerti- 

 ons of "he advocates for the abolition of the Have 

 trade have not been entirely in vain. 



j The Chridmas quarter of 

 cents is wanting. 



79J for S'. Vin- 



