Reviews and Extracts-. — Horticulture, 6)C. 403 
*♦* Leaves with middle-sized spiiiea, (a/juiif 6 or 7 /// an iii.rh mi an average.) 
a Flowers purplf. Fruit ci/tiiidrical. 
17 Sierra-Leone. 18 Anson's. 19 Montserrat. 20 Trooper's Helmet. 
Fruit pyramidal. 
21 Green Providence, 22 St. Vincent. 
b Floivers liluc. Fruit cylindricul. 
23 Globe. 24 Lemon Queen. 25 Otaheite. 26 Surinam. 
27 Buck's Seedling Globe. 
Fruit Pyramidal. 
28 Brown-leav'dSugar-lf. 29 B; own Sugar-loaf. ;jO Mealy-leav'd Sugar-lf. 
31 Black Sugar-loaf. 32 Strip'd-leaved Sugar-lf. 33 Trinidad. 
34 Buck's Seedling. 33 Enville. 36 New Enville. 
37 Spring-Grove Enville. 38 Lord Bagot's Seedling. 39 Blythfield Orange. 
**** Leaves with large rigid spines, (iibout 4 in an inch on an average) 
a Flo wers purple. 
40 Black Antigua. 41 Welbeck Seedling. 42 Ripley. 
b Flowers lilac . Fruit globular. 
43 Russian Globe. 44 Russian Cock's-comb, 
Fri/it cylindrical. 
45 Queen. 46 Ripley's Queen. 47 Green Queen. 
48 Moscow Queen. 49 Striped Queen. 50 Silver-striped Queen. 
51 Antigua Queen. 52 Blood Red. 
2. — Ob.servations o\ the Methods now in use for the 
Artificial Growth of Mushroom.s, with a full expla- 
nation OF an Improved Mode of Culture. By Edward 
Callow. 8vo. 7s.6d. boards. 
Our readers will probably recollect that we noticed the forth coming of this 
work some time ago, and although we are somewhat disappointed with its 
contents, we are far from v.'ishing that any observations of ours may prevent 
Mr. Callow from being handsomely remunerated for his long practical expe- 
rience as a gardener, but as we professedly commenced the Horticultural 
Register with the view of bringing before the public a cheap miscellany, 
placed within the reach of all, we cannot but think had Mr. Callow published 
his Treatise at 26'. 6d, instead of 7*. 6d., he would have been far better remu- 
nerated, because hundreds would have purchased his little work, who, at the 
present high price will not. We are borne out in this opinion, by the very 
limited circulation all dear works meet with. Mr. Oldacre's Treatise on the 
German mode of cultivating the Mushroom, published 15 or 16 years ago, at 
£1. Is. may illustrate what is here advanced; had it been published at .'is. it 
no doubt would have paid well, because, then the circulation would have been 
extensive; instead of which, ten or twelve gardeners, in most districts, sub- 
scribed to buy the work, and as soon as it appeared each took a copy of it iu 
writing. Mr. Baldwin's Treatise on the Pine Apple also shared the same fate, 
Wc are sorry we cannot recommend our readers to purchase tlie work, on 
the ground of value, for we conscientiously believe it ought to have been 
one-third cheaper. The main feature of Mr. Callow's improvement is, using 
