BIBLIOGRAPHY OF PUBLICATIONS OF ISAAC LEA, LL. D. 171 



1874. Lea, Isaac— Continued. 



Read before the American Philosophical Society and the Academy of Natural 

 Sciences of Philadelphia, from 1827 to 1874. | by | Isaac Lea, LL. D. [ — | Vol. 

 III. I — I Philadelphia: | Printed for the Author. | Collins, Printer, 705 Jayue 

 Street. | 1874. 4°. pp.29. 



" The two previous indices, published in 1867 and 18G9, were chiefly intended for references 

 to general species in the previous twelve volumes. The object of this Index is to embrace 

 the subject-matter, anatomical and structural details, habits, etc., of the whole thrirteen 

 volumes, and in such an extended and analytical manner as to mako every part of these 

 volumes accessible to the student of these important and very interesting Families of the 

 Mullusca." Notice p. 3. 



OKDEB OF ARUANGEMENT. 



Section I — Embraces new species of Unionidse, Embryonic forms and soft parts, being 

 origixial descriptive matter in Vol. xiii. 



Section II— Embraces new species of Univalve mollusca, being original descriptive matter 

 in VoL xiii. 



Section III — Euibraces miscellaneous references to known species of Unionidse, in Vol. xiii. 



Section IV— Embraces miscellaneous references to kno^NTi species of Univalves, in Vol. 

 xui. 



Section V — Embraces references to Armtomical and Structural details, habits, and other 

 peculiarities of Unionidas, etc., etc., etc., in Vols, i to xiii, not embraced in former Indices. 



277. 



1876. Lea, Isaac. Further Notes on "Inclusions" in Gems, etc. <^Proc. Acad. Nat. 

 Sd., P/(i7fl.,xxviii, pp. 98-107, with a lithographic jilate. 



Head before the Academy of Natural Sciences, May 23, 1876. Pages 98-104 of the Pro- 

 ceedings were presented to the Academy July 11, 1876, pp. 105-107 August 8, 1876. Eor 

 separate, see No. 278. 



278. 



1876. Lea, Isaac. Further Notes | on | "Inclusions" in Gems, Etc, | by | Isaac Lea, 

 LL.D. I Philadelphia: | Collins, Printer, 705 Jayne Street. | 1876. 

 This is the Separate of No. 277. 

 Copy in Library of Congress has date of .lime 20, 1876. 



279. 



1876. Lea, Isaac. Catalogue | of | the Published Works | of | Isaac Lea, LL. D. ( 

 From 1817 to 1876. | — | Philadelphia: | Collins, Printer, 705 Jayne Street. | 

 1876. 8°. pp.22. 



