PLAN OF A NEW BOILER. 273 



handsome flowers as large as D. Palpebrce ; Stravadium album, 

 a beautiful tree with pendent spikes of large white flowers, 

 sometimes as much as 18 inclies long; 3Ietrosideros ciliata, a 

 charming crimson-flowered bush, at present iniknown in our 

 gardens ; a magnificent new Grevillea* bearing a profusion of 

 racemes 6 inches long, of pure wliite flowers ; the rare and 

 little known Codia inontana of Labiilardiere ; and an Anacar- 

 diiim without flowers, concerning which he has furnished tlie 

 following memorandum : — 



" A native of the island Vanicolla, one of Queen Charlotte's 

 group. The fruit of this plant so closely resembles the Cashew 

 Kut, that it was at first mistaken for it. When gathering the 

 seed, I expressed some of the juice from tlie nut upon my hand, 

 which, having bj^ some means been communicated to my eyes, 

 caused the eyelids first, then the whole face, to swell to such an 

 extent, that not a feature could be distinguished, and rendered 

 me for two days quite blind. The sw^elling in the face continued 

 a week. My hands, feet, and legs were then attacked in almost 

 a corresponding degree to that of tlie face. As soon as the 

 swelling liad subsided, the skin came off" the parts which had 

 been affected in large flakes. I did not experience the slightest 

 pain at any time. Where the juice touched the hand, the skin 

 became quite black." 



XXIV. — Plan of a new Boiler. 



The following is the plan of a new boiler recently put up in one 

 of the stoves in the Society's Garden at Chiswick, by Messrs. 

 D. and G. Bailey, of 272, Holborn. 



It is a cast-iron boiler, with a wrought-iron cover bolted on. 

 Its presumed advantages are, that it is more economical than 

 other boilers in its expenditure of fuel, as it exposes a very large 

 heating surface to the fire ; and as it contains but a small 

 quantity of water, it heats quickly. 



The pipe on the top, called the combustion pipe, is for the 

 purpose of forming a current for the smoke through the centre 

 of tlie boiler. 



* G. exnl ; foliis oblongis basi angustatis apice retusis subtus glaucis 

 leviter tomentosis 3-nerviis veuosisq., racemis secundis sericeo-tomentosis 

 paniculatis. pistillo glaberrimo, ovario longe stipitato basi gibboso, stigmate 

 medio conico, stylo cal} ce pluries longiore. — Native of the East Coast of 

 New Caledouia, in exposed situations. Fruit uuknown. Related to Gr. 

 Chysodendron. 



VOL. VI. U 



