368 Bibliographical Notices, 



The same author has just completed the second part of Mr. Bauer's 

 ' Illustrations of the Genera of Ferns '; and the seventh part of the 

 ' Botany of Capt. Beechey's Voyage ' will soon be ready. These two 

 works, and the ' Flora Boreali- Americana,' of which Part X. is in a 

 state of great forwardness, are published by H. G. Bohn, 4, York 

 Street, Covent Garden. 



We have just received the forty-seventh number of Mr. Sowerby's 

 ' Supplement to English Botany.' It contains plates and descriptions 

 of Polygonum laxum, Reich. andBorr. in Hook. Brit. Fl., ed. 4. nete ; 

 Lotus hispidus, Loisel, which we have been disposed to consider as 

 not specifically distinct from L. angustissimus, and it occurs in 

 Jersey with that species ; Char a pulchella, Wallr., " principally di- 

 stinguished from C Hedwigli by its more flexible stems and oblong 

 nucules;" and Tetraspora luhrica, Agardh, and Hook, in E. Fl. 5. 

 p. 313. 



Tijdschrift voor Natuurlijke Geschiedenis en Physiologic ; edited by 

 Prof. J. Van der Hoeven and Prof. W. H. de Vriese, Leiden, 1837. 



Part I and II. 



These contain the following original articles, besides reviews and 

 notices. 



Some remarks on the northern Whale, Balanoptera rostrata. By 

 W. Vrolik. — On the Sargasso or Gulf- weed. By F. A. W. Miquel. 

 — Some remarks on the origin of the green colour and changes of 

 form in the stem of plants. By Dr. J. Wttewaall. — Researches re- 

 specting the motion of leaves which do not originate from swellings. 

 By M. Dassen. — [The principal results contained in this memoir 

 have been noticed at p. 223. of this Journal.] — Additions to our 

 knowledge of the simple eyes of articulated animals. By A. Brants. 

 — Experiments on the action of poisons on plants. By F. A. W. 

 Miquel. — On the cause of the brand in Physalia. By P. W. Korthals. 

 — Some notices of G, R. Treviranus. By J. Van der Hoeven. 

 Part III. and IV. 1838. 



Hints on the origin of monstrous births, and on the doctrine of 

 misformatlons. By W. Vrolik. — Contributions to the natural history 

 of man. By J. Van der Hoeven. — The vegetation of the Northern 

 Nertherlands compared with that of the Prussian Rhine Provinces. 

 By F. A.W. Miquel. — Contributions to the solution of the question, 

 whether Lemna arrh'iza, auct. be a permanent distinct species, or 

 merely a development form of some other species of the same genus. 

 By J. F. Hoffmann.— On the periodical secretion of blood from the 

 generative organs in some domestic animals, especially in the cow. 



