A BIOGRAPHICAL NOTICE OF GEORGE W. TRYON (PB)

A BRIEF HISTORY OF AN EXISTING CONTROVERSY ON THE SUBJECT OF ASSIMILATED RANK IN THE NAVY OF THE UNITED STATES

A BRIEF HISTORY OF AN EXISTING CONTROVERSY ON THE SUBJECT OF ASSIMILATED RANK IN THE NAVY OF THE UNITED STATES

A BRIEF HISTORY OF AN EXISTING CONTROVERSY ON THE SUBJECT OF ASSIMILATED RANK IN THE NAVY OF THE UNITED STATES

A BRIEF HISTORY OF AN EXISTING CONTROVERSY ON THE SUBJECT OF ASSIMILATED RANK IN THE NAVY OF THE UNITED STATES (1850) (HB)

A BRIEF HISTORY OF AN EXISTING CONTROVERSY ON THE SUBJECT OF ASSIMILATED RANK IN THE NAVY OF THE UNITED STATES (1850) (PB)

A BRIEF HISTORY OF AN EXISTING CONTROVERSY ON THE SUBJECT OF ASSIMILATED RANK IN THE NAVY OF THE UNITED STATES (HB)

A LEXICON OF TERMS USED IN NATURAL HISTORY; PREPARED FOR SCHOOLS, COLLEGES AND FAMILIES

A MEMORY

A NOTICE OF THE ORIGIN, PROGRESS, AND PR (PB)

A NOTICE OF THE ORIGIN, PROGRESS, AND PRESENT CONDITION OF THE ACADEMY OF NATURAL SCIENCES OF PHILADELPHIA

A NOTICE OF THE ORIGIN, PROGRESS, AND PRESENT CONDITION OF THE ACADEMY OF NATURAL SCIENCES OF PHILADELPHIA (1852) (PB)

A REPORT ON THE ORIGIN AND THERAPEUTIC P (PB)

A SKETCH OF THE LIFE OF JOSEPH LEIDY

A VOYAGE ROUND THE WORLD

A VOYAGE ROUND THE WORLD (HB)

A VOYAGE ROUND THE WORLD (HB)

A VOYAGE ROUND THE WORLD: INCLUDING AN E (HB)

A VOYAGE ROUND THE WORLD: INCLUDING AN E (PB)

A VOYAGE ROUND THE WORLD; INCLUDING AN EMBASSY TO MUSCAT AND SIAM, IN 1835-6 AND 7. VOL. I.

ACCOUNT OF THE INSTITUTION (PB)

AN ACCOUNT OF THE INSTITUTION AND PROGRESS OF THE COLLEGE OF PHYSICIANS OF PHILADELPHIA DURING A HUNDRED YEARS, FROM JANUARY, 1787

AN ACCOUNT OF THE INSTITUTION AND PROGRESS OF THE COLLEGE OF PHYSICIANS OF PHILADELPHIA DURING A HUNDRED YEARS, FROM JANUARY, 1787 (HB)

ELEMENTS OF BOTANY

ELEMENTS OF GEOLOGY

ELEMENTS OF GEOLOGY (HB)

ELEMENTS OF HERPETOLOGY AND OF ICHTYOLOGY; PREPARED FOR THE USE OF SCHOOLS AND COLLEGES

ELEMENTS OF HERPETOLOGY, AND OF ICHTHYOL (HB)

ELEMENTS OF HERPETOLOGY, AND OF ICHTHYOL (PB)

ELEMENTS OF HERPETOLOGY, AND OF ICHTHYOLOGY - PREPARED FOR THE USE OF SCHOOLS AND COLLEGES (PB)

ELEMENTS OF HERPETOLOGY, AND OF ICHTHYOLOGY; PREPARED FOR THE USE OF SCHOOLS AND COLLEGES

ELEMENTS OF MAMMALOGY; PREPARED FOR THE USE OF SCHOOLS AND COLLEGES

ELEMENTS OF NATURAL HISTORY VOLUME 2; EMBRACING ZOOLOGY, BOTANY AND GEOLOGY FOR SCHOOLS, COLLEGES AND FAMILIES

ELEMENTS OF NATURAL HISTORY, VOL. 1 OF 2

ELEMENTS OF NATURAL HISTORY: EMBRACING Z (PB)

ELEMENTS OF NATURAL HISTORY; EMBRACING ZOOLOGY, BOTANY AND GEOLOGY FOR SCHOOLS, COLLEGES AND FAMILIES VOLUME 1

ELEMENTS OF ORNITHOLOGY

ELEMENTS OF ORNITHOLOGY: PREPARED FOR TH (HB)

ELEMENTS OF ORNITHOLOGY: PREPARED FOR TH (PB)

ELEMENTS OF ORNITHOLOGY; PREPARED FOR THE USE OF SCHOOLS AND COLLEGES

FIRST-BOOK OF NATURAL HISTORY; PREPARED FOR THE USE OF SCHOOLS AND COLLEGES

FIRST-BOOK[S] OF NATURAL HISTORY; PREPARED FOR THE USE OF SCHOOLS AND COLLEGES FROM THE TEXT OF MILNE EDWARDS & ACHILLE COMTE

FOUR MODERN NAVAL CAMPAIGNS (HB)

MOLLUSCA (PB)

NARRATIVE OF A VOYAGE ROUND THE WORLD, DURING THE YEARS 1835, 36, AND 37

NARRATIVE OF A VOYAGE ROUND THE WORLD, DURING THE YEARS 1835, 36, AND 37 (HB)

NARRATIVE OF A VOYAGE ROUND THE WORLD, DURING THE YEARS 1835, 36, AND 37 (HB)

NARRATIVE OF A VOYAGE ROUND THE WORLD, DURING THE YEARS 1835, 36, AND 37 (PB)

NARRATIVE OF A VOYAGE ROUND THE WORLD, DURING THE YEARS 1835,36, AND 37

ON THE ENLISTING, DISCHARGING AND PENSIONING OF SOLDIERS (HB)

PHYSIOLOGY AND ANIMAL MECHANISM; FIRST-BOOK OF NATURAL HISTORY

THE NAVY (HB)

THE NAVY (PB)

THE NAVY; HINTS ON THE REORGANIZATION OF THE NAVY

THREE YEARS IN THE PACIFIC

THREE YEARS IN THE PACIFIC

THREE YEARS IN THE PACIFIC

THREE YEARS IN THE PACIFIC (PB)

THREE YEARS IN THE PACIFIC (HB)

THREE YEARS IN THE PACIFIC (HB)

THREE YEARS IN THE PACIFIC (HB)

THREE YEARS IN THE PACIFIC (HB)

THREE YEARS IN THE PACIFIC (VOLUME 1); C (PB)

THREE YEARS IN THE PACIFIC: CONTAINING N (HB)

THREE YEARS IN THE PACIFIC: CONTAINING N (PB)

THREE YEARS IN THE PACIFIC: INCLUDING NO (HB)

THREE YEARS IN THE PACIFIC: INCLUDING NO (PB)

THREE YEARS IN THE PACIFIC; INCLUDING NOTICES OF BRAZIL, CHILE, BOLIVIA, PERU

VERTEBRATE ANIMALS