180 JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 



The costly "Pinetum Britannicum," published originally 

 by P. Lawson & Co. and brought to a close a few years since 

 by Mr. Eavenscroft, with the assistance at various times 

 of Robert Brown, Lindley, and especially of Andrew Murray, has 

 been quoted throughout. The lattermost sheets of this great 

 but sadly incomplete book were prepared by the present writer, 

 at Mr. Ravenscroft's request, in order to fulfil the obligations 

 to the original subscribers. That task was accomplished, it is 

 to be feared, at great loss to the proprietor. The death of Mr. 

 Raven scroft has put an end to the idea, at one time entertained, 

 of publishing an abridgment of the existing work, with a con- 

 tinuation completing the history of the Order, and materials 

 for which have been collected by myself. 



Loudon's " Encyclopaedia of Trees and Shrubs " (1842) is 

 quoted by reason of the numerous woodcuts, copies from 

 Lambert's costly work, and also others from original sources, 

 that it contains. In these respects it is more complete than the 

 " Arboretum," which was published earlier ; moreover, a more 

 recent edition or reproduction has been issued. 



The treatises of Endlicher, Gordon, and Carriere have, of 

 course, been consulted, although, for the reasons above given, 

 they are not always specifically quoted. 



Hoopes' "Book of Evergreens" (1868), an American work, well 

 illustrated, deserves to be known here more widely than it is. 



Veiteh's excellent " Manual of the Conifers " (1881) has 

 been cited throughout, not only on account of its general 

 accuracy, but because of its ready accessibility and wide dis- 

 tribution among gardeners. 



Beissner's " Handbuch der Nadelholzkunde " (Berlin, 1891) 

 is well illustrated, and for the most part complete and accurate 

 so far as the species hardy in Germany are concerned. The 

 list of varieties it contains is also valuable for garden purposes. 



It is hardly necessary to allude to those European floras which 

 have been dealt with in the older books, but among more recent 

 productions may be mentioned Willkomm's " Forstliche Flora," 

 2nd edit. (1887), an excellent manual of the forest trees of Ger- 

 many, and one in which many Conifers are figured ; Velanofsky, 

 " Flora Bulgarica " (1801), and Blanchet, " Catalogue desPlantes 

 vasculaires du sud-ouest (Pyrenees, etc.) de la France " ; whilst 

 several Conifers are figured in the "Flora Forestal Espaiiola," 



