50 



RetrofpeHof the Fine JftS.. 



[A as U 



tif'n ; but Mr. B. fayi, that its conftruc- 

 tion may be varied io that the fame prin- 

 ciple is adiiered to, viz. to ftiain the cloth 

 or fluff trom (elvagc to fclvage, or lilt to 

 lift, by which mean* the operation of crop- 

 ping, fiiear'ng, &.'c. is fcj much facilitated j 

 ind the workman enabled to produce better 

 work, and in lefs time than he could by any 

 former method. 



MR. JONATHAN HORNBLOWER's (peN- 



1/.YN), for a 7ieiv invented Steam IF heel 

 or Engine, for raifmg Water. 



Ky this invention the fteam is made to 

 pais from boilers, of any common conftruc- 

 ti;):i, into Iteam vclTcls, fo contrived and 

 dii'poled as to pi(;ducc an immediate cir- 

 cular motion round an axis, and thereby 

 coiTimimlcate a rotary motion alfo to other 

 pans, that m'ly be ajipended to, or con- 

 neftcd with the machines, without theinrer- 

 venric n ot wheel-work, and other compli- 

 cated machinery, which has hitherto been 

 found neceflary, where motions that aie 

 rot:i;ive aie produced by mean-- of fuch as 

 are rei^.le■■eHr anJ interchangeable. 



2. The Ikain is made to operate on cer- 

 tain miveable parts, fo connefied wi:li an 

 axle within the aforefaid veflel, that they 

 occafionally, and aliernaiely, prefent un- 

 equal areas to the action of the He.im ; by 

 which means the equipoife, which would 

 otherwife exift, on oppofite fides of the 

 axis, is done away. 



3. The moveable parts which compofe 

 the f<iid unequal areas do fucceffively form 

 a partition, coiilf ituting two feveral apart- 

 ments in the laid fleam veffcls, fo that in 

 the aft of their interchanges a continuou* 

 circular motion is produced, without fuf- 

 tering any communicaiion to exdt between 

 the aforela'd t ao anartments. 



4. The Iteam vcilel is lb conftrui5ted as 



for one of its apartments to receive a con- 

 ftant fupply of fteam from the boiler, 

 whillt the other apartment communicates 

 unintenuptedly with the condenlnig appa- 

 ratus. 



From the praftical application of the 

 aforefaid prmciples, Mr. H. fays, he obvi- 

 ates all thofe inconveniences attendant on 

 fuch Heam engines as are retarded in their 

 operations from 'visinertiu:, as often as the 

 diiei\ion of their motions are reverled, or 

 fuch as require fly-wheels, of a magnitude 

 fo enormous as to occalion a valt abforp- 

 tion of power. 



MR. BENJAMIN BaTLEY's (QUEEN- 



STREET, CH^A? !,iTyr.),Jor a neiu Me- 

 thod of refining Sugars. 

 It is, perhaps, not generally known to 

 the public, that f ngir is refined by means 

 of bullock's blood, often made ufe of in a 

 ftate of putridity, which Mr. B.itley con- 

 ceives may, without the greateft care in 

 the operation, be milchievous to the health 

 of thole who are in the conftant habit of 

 ufeing It as an article of diet. He has, 

 therefore, afier many experiments, found 

 that milk m^y be fubftituted very luccel's- 

 fullv in the ftead of blood, and according 

 to the fpecification before us : He firit 

 charges the pans with the ufual quantity 

 of lime water, and to each ton weight of 

 fugar he adds ten gallons of milk, more or 

 Icl's, according to tlie quality of the fugar ; 

 of which five gallons is to be mixed with 

 the water, and after the fugar \%fkipped, it 

 is to remain in the pan till the next morn- 

 ing. The whole is then to be flirred to- 

 gether, and when the fcum is taken off", 

 more milk is to be added, and the (amc 

 procefs repeated till the liquor is perfedly 

 cleared. 



MONTHLY RETROSPECT OF THE FINE ARTS. 



7he Loan of all new Prints and Communications of Articles of Intelligence are requejied. 



'lilt AJccnfion, an upright Print, ^^by 19. Ea- 

 graved by Mejfrs. Facius, from a FifJwt 

 fainted by Benjamin tViJt, Efq. R. A. and 

 fub/ijhed by Boy Jell and Ci. ' 



THE original piiSure from which tliis 

 print is engraved mult be in the re- 

 culleflion of many of our readers. Like 

 nioft of the capital piifiiiits p<;inted by the 

 Piciident of the Koyal Academy, it js 



well ftudied and properly balanced ; the 

 figures corredtly drawn and judicioufly 

 grouped. Grent attention has been paid 

 to this copy i the lights and fhadows are 

 very Ikiltuily managed; and, being of a 

 large fize, it has, when printed in co- 

 lours, a very pi6\urel"que aopearance, and 

 an agteeablt and peculiarly brilliant 

 ttf«.a. 



Plate 



