48 2 Bibliographical Notices. 



a native originally of the East Indies, is found in the Archipelago 

 of the Canaries, as well as at Madeira and Porto Santo. It 

 abounds on the volcanic slopes of the Brena, in the island of Palma ; 

 at Teneriffe, some aged specimens are found in the valley of Ora- 

 tava, and in the Ravin de FEnfer ; adorning the basaltic pinnacles 

 of the eastern slopes. 



Pistaekus lentiscus, and Olea Europea are profusely distributed 

 over the great Canary, but in Teneriffe and Palma, they have given 

 way to the culture of the vine, though the names, still existing in 

 the hills and valleys, shew that they were once abundant. 



There are many other remarks and observations which might be 

 taken from this department, but in noticing them all, we should 

 have in reality to transcribe the chapter. We unhesitatingly recom- 

 mend the work for perusal to botanists ; they will find much informa- 

 tion and much useful criticism upon the histories of Humboldt and 

 Von Buch, &c, which have the additional merit of being candidly 

 and modestly expressed, do full justice to the labours of these dis- 

 tinguished individuals, and we feel convinced will be read by them 

 with pleasure, and without any of that feeling of asperity which 

 the remarks of one traveller upon the works of his predecessors so 

 frequently calls forth. 



Bibliographical Notices. 

 Hymenopterornvi Ichneumonibus afflnium monographic, Genera 

 Eurojjcea et Species illustrantes. Scripsit C. G. Nees ab Esen- 

 beck. 2 vols. 8vo. 



This work, though one of importance, is known to be merely an 

 extract from a much more voluminous one, still in MS., consisting 

 often volumes in quarto. It is preserved in. the museum of Bonn, 

 to which the author was formerly attached, prior to his settlement 

 at Breslaw. He had there formed a collection of 25,000 insects, 

 among which are contained all the Hymenoptera described in the 

 work above named. M. Nees d'Esenbeck is a noted botanist, and 

 successfully combines the study of two departments of natural his- 

 tory, the practical pursuit of each of which so well accords with the 

 other. This work may be regarded as a supplement to or rather a 

 completion of M. Gravenhorst's Ichneumonologia Europcea, publish- 

 ed in three very thick volumes in 1829. These authors worked 

 with a mutual understanding of each others labours, and while the 

 latter undertook and completed the Ichtieumones, properly so called, 



