56 Bibliogi'aphical Notices. 



the plates are made from his owa dissections : some few are from 

 Thuret, Harvey, and others ; but in every case the authority for the 

 figure is added to it. In so large a field as Cryptogamic Botany, it 

 was hardly to be expected that even Mr. Berkeley's learning should 

 suffice for all points. Accordingly he has consulted various friends 

 (named in the introduction and in several parts of the body of the 

 work) on those subjects which they have specially studied. At the 

 end is added a very useful catalogue, but (as we have intimated 

 already) not quite so perfect as could be wished, of the })riucipal 

 works on Cryptogamic plants, both generally and specially. 



We have now the less pleasing task of pointing out a somewhat 

 serious, though very remediable defect in the book. It is entirely 

 destitute of anything like a synopsis of its contents ; it consists of one 

 long chapter without any summary prefixed ; and it is broken into 

 64.5 articles, without any marginal or other indication of the contents 

 of each. The running title, " Introduction to Cryptogamic Botany," 

 occurs 57'J times without variation at the top of the pages. The 

 reader consequently, especially the inexpei'ienced reader, finds him- 

 self, on opening the book, in the midst of an intricate wood without 

 star or compass. It is only by putting together the indications given 

 at pp. 69, 81, and 424, that any person, unacquainted with the sub- 

 ject, can gain a faint knowledge of the subjects discussed. 



We have drawn out, partly for our own profit, partly for that of 

 the reader, a kind of syllabus of the arrangement. It will also show 

 what proportions of the work are occupied by particular tribes, A 

 general introduction is prefixed to the whole work, and there is a 

 special introduction (systematic, physiological, and geographical) to 

 each aUiance. 



Class I. Thallogens. 

 Alliance I. Algales, pp. 84-234. 



The Alga; are divided into three groups. See p. 108. 

 Alliance II. Mycetales, pp. 235-420. 



a. Fungales, pp. 235-372. 



For the divisions of the Fungi, see p. 269. 



b. Lichenales, pp. 372-420. 



For the divisions of the Lichens, see p. 389. 



Class II. Acrogens. 

 Alliance III. Chavaceae, pp. 425-430. 

 Alliance IV. Muscales, pp. 430-507. 



Includes Ricciacese, Marchantiacese, Jungermanniacea;, as well as 

 ^lusci. For the divisions of the last, see p. 469. 



Alliance V. Filicales, pp. 507-564. 



Includes Ophioglossese, Equisetacese, Marsileacete, and Lycopo- 

 liaceae, as well as Ferns proper. For the di^nsions of the last, see 

 p. 522. 



We have said that the defect is remediable ; and even with respect 

 to the present edition (for we trust that such a book as this will go 



