Geology and Paleontology. 727 
Part III. Pages 29 to 38, plates are mentioned in the 
text, but none have been published. Yellow cover, with 
the date August, 1833; on the fourth page there is a note 
that the plates will be published with No. 4. 
Part IV. Pages 39 to 46. No plates. Yellow cover, 
with date October, 1833 ; on the fourth page a note signed, - 
“T. A. Conrad, Claiborne, Alabama, November 1, 1833.” 
Second edition: Pages numbered 29 to 56, plates numbered 15 
to 18. One colored geological map of Alabama. Blue 
cover, the title-page of which gives the date: “ Republished 
with plates, March 1, 1835.” 
2. “Fossils of the Tertiary Formations of the United States.” 
The book is sometimes quoted as “ Fossils of the Medial Tertiary 
of the United States,” on account of the title-page of two of its 
parts. The following notes are also based on the copy in thelibrary 
of the Academy of Natural Sciences and my own copy, which 
supplement each other. 
The introduction is numbered V.to XVI.; the rest is numbered 
1 to 89. There are forty-nine plates; some of them are without a 
number. The book has been issued apparently in three parts The 
cover of the second part contains quite a number of descriptions. 
Part I. Pages 1 to 32, plates 1to17. The brown cover 
is without a date, and gives the title: “ Fossils of the Medial 
Tertiary of the United States.” The fourth page contains 
the descriptions of four species. 
_ Part II. Page 33 to 56, plates 18 to 29. The brown cover 
is also without a date, and on the title-page is also printed, 
“Fossils of the Medial Tertiary,” ete. The other three 
pages contain quite a number of descriptions, among them 
the FR four species, which are described on the cover of 
art L. 
Part III. Contains apparently the rest of the book : 
pages 57 to 89, plates 30 to 49. The brown cover is also 
without date, but gives the title: “ Fossils of the Miocene 
Formation of the United States.” 
Regarding the date of issue of the different parts of the “ Fossil 
Shells,” and the authorship of Part III. and Part IV., nothing 
need be said here. Regarding the date of issue of the “ Tertiary 
Fossils,” the following may be stated :— 5 
The cover of Part I. of the Academy’s copy bears in 
Conrad’s handwriting the date “ January, 1838.” Lee 
The cover of Part II. of my copy is marked with ink in 
Conrad’s handwriting, “ May 7, 1840.” 
The cover of Part III. of my copy is marked in the same 
way by Conrad, “ January 1845.” — Otto Meyer, Ph.D. 
