( Ipl ) 
in. A Letter from Sir Dudley Cu!!um, to John Ei^eJin, Efq-^ 
concerning the lately invented Stove for preferving Plants 
in the Green Houfe in Winter^ puhli[hed at the end of 
the Galendarium Hortcnfe. 
SIR, 
¥ Cannot but think my felf obliged in Gratitude to give 
I you an Account how well your lately invented Stove 
for a Green Houfe fucceeds (by the Experience I have 
had of it) u^hich certainly has more Perfection, than 
ever yet hxt was before Mafter of. Sir, I have purfued 
your Dire&ions in laying my Pipes (made of Crucible 
Earth) not too near the Fire-grace, which is nigh upon, 
or better than fixteen Inches • and by making a Trench 
the whole length of my Hcufe, under the Paving (for 
the Air to iffueout and blow the Fire) of a convenient: 
breadth and depth ( that is, 1 8 Tnches both way/, covered 
with am Arch of Bricks) and at the rther end of the 
Trench, having a fquare Iron Plate anfwerable to that 
of my Paving (which is i8 Inches) to take off and put 
on, with a round hole at each corner, of about 3 Inches 
Diameter, with a Lid to Aide open^ and (hut, upon every 
end of them, (as you may have feen upon fome Porridge- 
Pot covers) fo that by opening any of thefe holes, or all 
of them, more or le(s, or taking off the whole Plate, I 
can releafe fuch a quantity of Air out of the Houfe to 
blow the Fire fb, as to increafe or diminiOi the blafts ; 
and, as you were pleafed by Letter to inform me^coocqn- 
ing diflributing the Air at its admiflion more equally 
thro !gh the Houfe , I have inferred my Pip^s into a 
Channel all along the Wall at the end or the Houfe, with 
thofc feveral Overtures you mentioned : All which, Sir, 
I affure you, prove moft admirably v/ell, as by this free 
and generous Commuaication of yoms you mart hav^e 
highly obliged all the Lovers of this Rt^creation,. as well 
as, S I Tour tm^^ fa^^hful and 
Hmhle Servant^ 
D. Galium. 
