3 1 8 Catalogue of Works on Gardening, Agriculture, fyc. 



and for this purpose he recommends such trees as grow rapidly 

 on an indifferent soil, enumerating ^4'lnus incana, iSalix </aph- 

 noides, and some other Malices, Carpinus Z?etulus, ilfespilus 

 Oxyacantha, (Spiraea opulifolia, Pninus Pad us, ii/ippdphae 

 rhamnoides, Viburnum O'pulus, Cornus alba, Lonicera Xylos- 

 teum, iJubus odoratus, A^cev rubrum, Pseudo-Platanus, and 

 campestre, 2?etula alba and nigra, LHmus americana, and Ro- 

 bin ia Pseud-^cacia. 



In order to prevent the formation of gaps, and also to 

 bring forth fine masses of foliage, it is necessary to avoid 

 placing together sorts of trees or shrubs very much contrasted 

 in form and modes of growth, thereby producing an unnatural 

 diversity. Many gardeners anxiously endeavour so to inter- 

 mix the German and North American trees, that no two in- 

 dividuals of the same sort may stand together. Such planters 

 have not the future, but only the present, before their eyes : 

 they do not reflect that such a party-coloured mixture can 

 never produce a picturesque effect, and that nature, when un- 

 touched by the hand of art, always places together, in ever- 

 varying numbers, forms and kinds suited to the inclination of 

 the surface and the qualities of the soil. 



48. Culture and Use of the Tetragbnia expansa, or New Zealand 

 Spinach. By M. Otto, Director of the Gardener's School, and 

 Inspector of the Botanic Garden. 



Sow the seeds in a hot-bed, and plant them out in mild 

 weather; gather and dress as common spinach. 



49. Extract from the Transactions of the Society at their Meeting 



held on September 7. 1823. 



The Countess of Reden, of Buchwald, in Silesia, has sent 

 fifty copies of M. Thouin's pamphlet, On Laying out and 

 Managing Nurseries of Fruit Trees, which are at the disposal 

 of the Society at about 3d. each. 



(To be continued.) 



Art. III. Catalogue of Works on Gardening, Agriculture, Botany, 

 Rural Architecture, fyc, published since October last, with some 

 Account of those considered the most interesting. 



Britain. 



Curtis' s Botanical Magazine, or Flower-Garden displayed; New Series. 

 Edited by Dr. Hooker. In 8vo Numbers. 5s. 6d. coloured ; 5s. plain. 



No. XI. for November, contains 

 2777 to 2783. — Barbacenia (M. de Barbacen, a govern, in Brazil) purpu- 

 reus; 6 and 1, and Haemodoreae. A very rare plant with carex-like leaves 



