REMARKS ON BOTANICAL BIBLIOGRAPHY. 171 



The editor, Dr. Jessen, has done his best to palliate some of 

 his author's omissions by supplying the titles in the systematic 

 portion of the ' Thesaurus.' For instance — 



Merrett (Christopher). Pinax rerum naturalium britannicarum 

 . . . Londini, 1667, 8vo (i., 6813), will be found in 

 ed. ii. only on page 500. 



This of course is but a partial remedy, for a book is almost 



entirely hidden if it cannot be seen on reference to the alphabetical 

 part. 



The conspicuous advantages of the second edition consist of 

 references to the Catalogue of Scientific Papers, and biographical 

 notices of the various authors. These notices, however, are not 

 invariably accurate : F. T. Pursh is represented as being bom in 

 1794, twenty years later than the fact, and Sauvages has a perfect 

 web of mis-statements about him. The entry stands thus :— 

 "Boissierde la Croix de Sauvages, Pierre AugusUn (Sauvagesia, 

 Jacq.) * Alais (Gard), 28 Aug., 1710, t Alais, 19 Dec, 1795." 

 Corrected it should run thus: — " Boissier de la Croix de 

 Sauvages, Francois, (Sauvagesia, Jacq.) * Alais (Gard), 12 May, 



1706, f Montpellier, 19 Feb., 1767/' The younger brother, a 

 theological writer, has here been mistaken for the botanist. 



This brings me to the subject of the numerous misprints in the 

 second edition, the first being conimendably free from them. 

 Cross-references were not overabundant in the previous issue, but 

 they are almost wholly absent from the second, also the 

 references to the collections in which the scarcer books are to be 

 found, are less numerous than in the old edition; in the second 

 becoming rarer as the printing of the work progressed, until the 

 final sheets are nearly free from them. 



I have further to point out the large number of duplicate, and 

 even triplicate, entries to be found in ed. ii. I join issue on the 

 propriety of giving a second number, when any work is mentioned 

 m the Addenda, for the sake of supplying additional information. 

 As a single example I adduce, Martius, Flora Brasiliensis 

 (ii. 5902 and 10603), the latter entry informing us of the issue 

 of fasciculi 51-56 ; here the number of the main entry should have 

 been given, and not a new one, as if it were a different book. 

 But I more particularly complain of a state of things like this :— 



Annals of Botany, by Charles Konig and John Sims. London, 

 1805-6. 2 vols. 8vo. (ii. 10687 and 4799). 



The Phytologist. . . London, 1842-51. 8vo. (ii. 10840, 

 5696, and 6687). 



Ibid. [New Series.] London, 1855-63. 8vo. (ii. 10841, 

 4500, and mentioned in a note under ii. 5696). 



Pfeiffer (Liuhr'uf). Bynonymia botanica locuplehisima genera 

 ... Cassellis, 1870. 8vo. (ii. 7109 and 10617). 



I have marked more than fifty of these duplicate entries in my 

 own copy of Pritzel. As as instance of one error causing another, 

 i may point out the case of Franz Romeo Seligmann, whose 

 three productions (ii. 8570-2) are inserted between Secretan 

 and Seeman on page 298, instead of their proper place on page 



