invented Inj Daniel Masercs, Esq. 55 



made, were invented by niy friend thelate John Daniel Ma- 

 seres, esq. who at his death bequeathed some of them to 

 me, with a view, I imderstand, to their being made public. 

 J have made some alterations, by which the machines can 

 with much greater case be drawn up for a second person to 

 descend ; and the cost of them will be considerably less. 

 My friend had himself made very great alterations from the 

 machines which he first invented (and for which he obtained 

 a patent) ; which perhaps was partly the reason v,hy he did 

 not make them more public, having scarcely decided which 

 was the best possible form. I can speak with some degree 

 of confidence as to the safety and ease with which they may 

 be used, having let mysclf out of window with one or other 

 of them a great number of times ; and am persuaded that, 

 if there were a necessity for it, J could safely bring down a 

 child in my arms : but as this way might be attended with 

 some danger with persons not well practised in the use of 

 the machine, it would be well, in nurseries and other rooms 

 where little children sleep, to be provided with one or more 

 strong sacks, about three feet and a half in depth and one 

 and a half dianicter, kept open at the top with a thick 

 wooden hoop having a long rope fastened to it : into these 

 sacks the children are to be put, and let down ; then the 

 person may descend by the Sling Fire-Escape, or such ether 

 as may be at hand. A friend of mine used to keep sacks 

 of this sort when his children were young j which is a plan 

 I wish to see generally adopted. 



Having shown this machine to many different people, who 

 have greatly approved of it, I beg leave, by means of your 

 entertaining and useful Magazine, to make the invention 

 public. The great and extensive sale which your work has, 

 and the superior maimer in which the plates arc executed, 

 make me prefer it to any other periodical publication. Hoping 

 it may have an early insertion, 



I remain, &c. 



B. M. FORSTEB. 



Valthamstow, 

 December lttO«. 



r. S. Mr. 



