60 CLLTIVATION OF IPOM.EA FICIIOLIA. 



continuing the supply until the 14th of April, when the whole 

 three broke ground and grew well. On the 10th of June gave 

 20 grains more soot as a top-dressing : thougli the soot remained, 

 without ai)parent]y mixing with tlie eartlis, yet the plants im- 

 proved by tiiis treatment, and on the 25th of July showed for 

 flower. Upon removing them and shaking out the earth from 

 the roots, the three weighed 215 grains. 



A, 98 ] 



B, 60 i 215. 



C, 57 J 



April, 1844. — Planted 3 lupines, 2 grains weight each, in the 

 pure eartlis, well mixed with 30 grains of nitrate of potash ; 

 watered, and the supply kept up until the 10th of June ; no 

 appearance of a plant; the earths then examined, and the shell 

 or covering of the seeds found empty. 



The same experiment as the last, only 30 grains of nitrate of 

 ammonia mixed with the eartlis, the same result followed. The 

 shells or covers of the seed left weighed 1 ^%- grains. 



XT. — On the Cultivation of Ipomcea Ficifolia, uilh a vietv to 

 its Floweritig i?i the Conservatory during the Summer and 

 Autumn Months. By James Duncan, C.M.H.S., Gardener 

 to Joseph Martineau, Esq., F.H.S., Basing Park, Alton. 



(Communicated Aug. 17, 1848.) 



To keep up a semblance of perpetual spring in ornamental struc- 

 tures, chiefly devoted to the cultivation of large specimen plants 

 growing in the open borders, is an object, the attainment of 

 which involves not only a considerable number of plants to flower 

 at various periods, but a diversity of height and colour, which 

 will at all times produce a display of considerable vaiiely and 

 contrast in every ])art of the house. 



As the month of June approaches, not oidy the Camellias but 

 most of the Acacias and other allied genera will have performed 

 their functions of flowering. Tiie large tub and pot specimens 

 too of Chinese Azaleas and Indian and hybrid Rhododendrons, 

 which had kept such structures in a blaze of flower for several 

 months previous to this period, will now be on the wane ; and to 

 supply this deficiency of flower after the majority of the per- 

 manent specimens are in their season of growth, I have had 

 recourse to many of the climbing plants usually cultivated in 



