146 



THE FLORAL WORLD AND GARDEN GUIDE. 



purplish crimson, narrow ring of wbite round the disk ; Duke of 

 Cambridge, crimson self; Flora, pure wbite, crimson edge ; Herbert, 

 white, blue edge ; Lord Amberley, rich plum ; Orb of Bay, crimson, 

 wbite ring round tbe disk ; Pandora, white, tipped with claret ; 

 President, rich plum, wbite ring round the disk ; Queen Victoria, 

 crimson, witb white ring ; Reynold's Hole, bright crimson ; Snow- 

 fiake, pure white ; Uncle Toby, deep purple self; Vesuvius, magenta 

 crimson. 



CANNELL'S NEW BOILEE. 



LTHOUGH there is no lack of good boilers for heating 

 horticultural structures, the new boiler, or " Hot-water 

 Circulator," invented and recently introduced to public 

 notice by Mr. Cannell, The Nurseries, Station Road, 

 Woolwich, is deserving of the careful attention of all 

 who depend upon the aid of artificial heat in the cultivation of 

 plants, fruits, and vegetables. The chief merits of the invention 

 consist in its being constructed so that the whole of tbe caloric or 

 heat which the fuel contains, excepting just sufficient to carry off 

 the smoke, is extracted aud carried to the water ; in its being 



If9 i Size 

 Boiler. 



manufactured in the best manner possible, to secure equal strength 

 in all the parts ; and in its being cast in separate sections to admit 

 of any part being replaced when worn out, without the necessity of 

 having an entirely new boiler. 



Eig. 1 is a sketch of a full-gized boiler, with the several sections ele- 

 vated to showthe peculiarity of its construction, and the ease with which 



