J 818.] Horticultural Transactions, Vol. II. Part VI. 293 



enzie's Plan for Forcing-Houses. By Thomas A. Knight, Esq. — la 

 the last part of the Transactions, Sir G. S. Mackenzie had pro- 

 posed the spherical form as the best adapted for forcing houses, 

 and Mr. Knight, coinciding in the general idea, suggests some 

 modifications in the original design, and endeavours to obviate 

 some objections that had been urged against the employment of 

 the spherical form generally ; but for the particulars we must 

 refer our readers to the original paper, as well as the engraving 

 which accompanies Mr. Knight's suggestions. 



On the Fences most eligible for Gardens and Orchards. By J. 

 Williams, Esq. — The object of the author is to recommend the 

 planting of evergreen, and especially of holly hedges, in prefer- 

 ence to those of hawthorne, or crab. His reasons are, that the 

 former do not afford the same inducement for insects to deposit 

 their young, and that they produce a much greater degree of 

 warmth and shelter. The practical directions that are given by 

 Mr. Williams should be attended to in the raising and manage- 

 ment of hollies. The berries do not ripen until March or April 

 of the following year; they are to be gathered at this time, buried 

 in heaps in the ground, and sown in drills the succeeding spring; 

 the proper season for removing the plants is the end of April or 

 beginning of May, when the buds are just expanding into leaf. 



Observations on and Account of the Tubers of the Lathyrus Tu- 

 berosus, with Instructions for the Cultivation of the Plant in a 

 Garden. By Mr. James Dickson. — The lathyrus tuberosus is a 

 native of many parts of the Continent, where the tubers that are 

 attached to the roots, after being boiled, are served up at desserts 

 like chesnuts in this country. The plant is propagated by means 

 of these tubers. 



Account of a Method of forcing Asparagus practised by Mr. 

 Wm. Ross, Gardener to Edward Ellice, Esq. at Wyke House, 

 near Brentford, with some Suggestions for its Improvement. By 

 Joseph Sabine, Esq. — The improvement consists m "placing the^ 

 roots of the plants over a substratum not in a state ot fermenta- 

 tion, ar«d by introducing into the bed the warmth necessary to 

 force trfcm from hot linings to the sides," by which means the 

 plant is less feeble and drawn than when the heat is directly 

 applied to the roots. Mr. Ross employs for raising his asparagus 

 the pits in which the succession pines are kept in the summer. 



Upon the proper Method of pruning the Peach Tree in cold 

 and late Situations. By T. A. Knight, Esq. — The author observes 

 that the blossom and leaf buds of plants, in their first state of 

 organization, do not materially differ from each other ; they then 

 contain leaves only, which are subsequently converted into the 

 component parts of the blossoms. A certain degree of heat and 

 light seems essential to the production of the blossoms, and, 

 accordingly, after a wet and cold season, like that of 1816, we 

 find the more delicate fruit trees to exhibit leaf buds only in the 

 following spring. Mr. Knight remarks that there are certain 



