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February 5

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1889, in volume 41, pages 29

Note on Gonyleptes and Solpuga

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1889, in volume 41, pages 45

March 26

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1889, in volume 41, pages 49

Contributions to the Life Histories of Plants. No. IV

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1889, in volume 41, pages 53-69

On Pratincola salax Verr. and Allied Species

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1889, in volume 41, pages 78-80

April 9

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1889, in volume 41, pages 90

New Species of Shells from New Hebrides

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1889, in volume 41, pages 91-94

A Parasitic Copepod

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1889, in volume 41, pages 95

A Contribution to the Knowledge of the Spider Fauna of the Bermuda Islands

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1889, in volume 41, pages 98-101

May 7

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1889, in volume 41, pages 129

The Sand-Dunes of Lewes, Del

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1889, in volume 41, pages 134-135

Notes on Enteridium rozeanum

Published in Proceedings of the Academy of Natural Sciences of Philadelphia, in 1889, in volume 41, pages 156-158

Description of New Species of Fossil Crustacea from the Lower Silurian of Tennessee, with Remarks on Others Not Well Known

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1889, in volume 41, pages 166-168

Catalogue of the Asteroidea and Ophiuroidea in the Collection of the Academy of Natural Sciences of Philadelphia

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1889, in volume 41, pages 169-179

The Spores of the Myxomycetes

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1889, in volume 41, pages 188-189

July 23

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1889, in volume 41, pages 189-190

A Review of the European and American Uranoscopidæ or Star-Gazers

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1889, in volume 41, pages 258-265

Remarks upon the Round-Tailed Muskrat, Neofiber alleni, True

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1889, in volume 41, pages 271-273

On the Anatomy of Aerope and Zingis

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1889, in volume 41, pages 277-279

September 17

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1889, in volume 41, pages 283

Sphærodoma: A Genus of Fossil Gasteropods

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1889, in volume 41, pages 303-311

October 22

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1889, in volume 41, pages 311-312

On the Taxonomic Values of the Wing Membranes and of the Terminal Phalanges of the Digits in the Cheiroptera

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1889, in volume 41, pages 313-340

Note on Pinus Banksiana

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1889, in volume 41, pages 344

Activity in Donax

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1889, in volume 41, pages 347

November 26

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1889, in volume 41, pages 348

Provisional List of the Plants of the Bahama Islands

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1889, in volume 41, pages 349-407

Notes on the Drift on Block Island

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1889, in volume 41, pages 408-409

December 24

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1889, in volume 41, pages 410

New and Little-Known American Mollusks, No. 2

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1889, in volume 41, pages 411-416

On a Petroglyph from the Island of St. Vincent, W. I

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1889, in volume 41, pages 417-420

Report of the Conchological Section

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1889, in volume 41, pages 433-434

Report of the Professor of Ethnology and Archæology

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1889, in volume 41, pages 440

Summary of the Report of Wm. C. Henszey, Treasurer: For the Year Ending Nov. 30, 1889

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1889, in volume 41, pages 442-444

Orcadella operculata Wing., a new Myxomycete

Published in Proceedings of the Academy of Natural Sciences of Philadelphia, in 1889, in volume 41, issue 2, pages 280-281

Notes on a small Collection of Myriopods from the Bermuda Islands

Published in Proceedings of the Academy Philadelphia, in 1889, in volume 1889, pages 127-129

On the new spider of the genus Dinopis, from the southern United States

Published in Proc. Acad. nat. Sci. Philad., in 1889, in volume 1889, pages 341-343