Bibliographical Notices. 165 ill this Journal. A groat part of tlicm will, we are confident, inaiiitaiii their ground with, it may be, a few modifications. Others unavoidably excite our scepticism ; but, until arguments are ad-duced on the other side, founded on something like equally cau-tious and intelligent study, Mr. Babington has a fair right to claim a strong provisional authority. If any one starts, as assuredly he ought to do, at being told that Arctium majus and minus constitute five species, we can only counsel patience and renewed observation, A large proportion of the novelties occur in the genus IIieraciu?n, where the pains bestowed by Mr. Backhouse on the cultivation oi" doubtful forms supply an excellent check on hasty conclusions in either direction. We should not omit to notice the arrangement of the Grasses, which has been greatly improved, chiefly from P'ries and Andersson. Species introduced or separated in the Ath edition. Ranunculus tricho))hvllus, Chaix. R. Drouetii, ¥. Schullz ? R. Baudotii, Godr. R. floribundus, Bab. R. peltatus, Fr. Polygala austriaca, Cr. [Sagina densa, Jord.^ Ilypericum anglicum, Bert. Rubus pampinosus, Lees. Epilobium rosmarinifolium, Haenke. E. anagallidifoliutn, Lam. Gahum montanum, \'ilL G. commutatum, Jord. G. elongatum, Presl. Arctium tomentosum, Pers. A. intermedium, Lanye. A. pubens. Bah. llieracium holoserieeumj Backh. H. eximium, Backh. II. calemluliflorum, Backh. H. gracileutum, Backh. II. globosuQi, Backh. Hieracium senescens, Backh. H. lasiophyUum, Koch. H. Gibsoui, Backh. H. argenteum, Fr. H. nitidum, Backh. H. aggregatum, Backh, H. stelligerum, Froel. Thymus Serpyllum, L. fSalix acutifolia, H Hid. Orchis incarnata, L. E))ij)ogium ai)hyllum, Sw. Arum italicum, Mill. [Potamogetou sparganiifolius, Luest. ?] [Eleocharis Watsoni, Baft.] Eestuca ^lyurus, L. Equisetum Moorii, Newm. Pseudathyriura aJpestre, Newm. ? P. flexile, Newm. ? Aspleuium acutum, Bory. [Gymnogramma ieptophylla, Desv.] ? [Botrychiura rutaceum, Sw.'] ? [Ophioglossum lusitanicum, L.] Species omitted in the 4th edition. Thalictnim majus. Hieracium anglicum. [H. oreades.] Rubus calvatus. R. fuscus. R. Wahlbergii. Hieracium atratum. H. dovrense. Sahx IlelLx. S. Forbyana. Trees and their Nature, or the Bud and its Attributes. By Ale.x. Harvey, A.M., M.D, &c. London, 18.^6. This is an amusing little vohmie, disjdaying a great deal of acute-ness, and the results of very careful reading within a limited sj)here. The object of the work is the discussion of the vexed question of
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