174 JTACHUJE fOti CLfiANINC ClIllklNfeYS. 



ing any hair in it, I am now enabled to forward you one in a 

 Used with sue "^'^'^^^ perfect state, which I had the honour of using in 

 cess. the presence of his Lordship the Bishop uf Durham, at the 



Military Hospital, Westminster, on the 11th of June, 1803, 

 and at the Jennerian Society, in Salisbury square, Fleet 

 street, on the 22d of the same month, and in the same year;— 

 a certificate of which, signed by the gentlemen who were pre- 

 sent*, [ had the pleasure of sending you. I have also sent 

 three lengths of the rod, (the same as those which were used 

 Its advantages. ^^ ^^^ above places), in order to enable the Committee to judge 

 with greater ease of the construction. Permit me neverthe- 

 less to observe, that the principle of my rod is so simple and 

 secure, that it may be used in almost every chimney with 

 safety, either by the maid servant, or a boy of twelve years of 

 age; it is calculated both for private and public use, and a 

 stranger to the machine, who used it at the Military Hospital, 

 declared he could sweep any chimney with it, the plan was so 

 good. It will also sweep German and other stove pipes, and 

 flues of almost every description. If the gentlemen of the 

 Society Will do me the honour to take the machine into their 

 consideration, I will wait on them by hearing from you, and 

 explain farther particulars. 



I am. Sir, your obedient servant. 

 Sir, JOSEPH DAVIS. 



Ramarlcs on ^ ^^ ^^^^^ ^^^^ ^ ^^^^*^ ^^^ ^" opportunity of giving my opi- 



the machine, nlon of your machine for cleansing chimnies, which I have 

 done by signing the certificate you brought me on Monday last. 

 I am of opinion, that your machine is capable of sweeping a 

 very great proportion of the chimneys in London and else- 

 where; perhaps there are not more than one or two in a hun- 

 dred, which it cannot be raised in. At present, there are (as 

 is well known to all chimney sweepers) some chimneys so | 

 small, that boys cannot climb them, so that on the whole I | 

 imagine, that your machine will sweep about the same num- 

 ber of chimneys as are swept by boys, though not exactly the 

 very same flues in every instance. 



I hope in time we shall convince the public, that they can j 



* B, M. Forstcr, Josejih I.eaper, and James Hebdin, EsqR. 



have 



