A SUPPLEMENT TO THE BIBLIOGRAPHY OF THE 

 PALEOZOIC CRUSTACEA.* 



BY ANTHONY W. VOGDES. 



In offering this supplement to the literature of this 

 special subject the author has brought the catalogue up 

 to date, as far as lies within his knowledge, and cor- 

 rected some errors and omissions of the first edition. 



A few may ask, what is the advantage of such a cat- 

 alogue; but let them take up any special study, and the 

 first thing that is wanted is a list of books, to know how 

 and what to read. 



Such compilations are dry and laborious, but like all 

 things that lead to, or add to knowledge, we have to dig 

 through a mass of details. 



The paleontologist has to work with species and all 

 such lists save him many a weary day of research through 

 many pamphlets and books; then again the want of just 

 such a catalogue as is herewith presented to the Acad- 

 emy leads to the making of new species, from which we 

 pray to be delivered. These hastily made children retard 

 the progress of knowledge, and sooner or later will have 

 to be reclassified under some older name, delaying the 

 progress of an advancing science, taking up the time and 

 labor of the student, to say nothing of his temper. 



Agassiz (L.) The Trilobites. 



In Canadian Nat. GeoL, vol. 6, 1872, pp. 358-361. 



Ammon (Ludw. von). Devonische Versteinerungen 

 von Lagoinha in Mato Grosso (Brasilien). 



In Zeitsch. Ges. fiir Erdkunde, Berlin, vol. 28, 1893; No. 5, p. 352. 

 Phacops brasiliensis Clarke. Harpes sp. 



* Occasional Papers of the California Academy of Sciences, No. iv, 1893. 

 2d See., Vol. V. May 28, 1895. 



