AMERICAN PERMIAN VERTEBRATES

AMERICAN PERMIAN VERTEBRATES

AMERICAN PERMIAN VERTEBRATES (HB)

AMERICAN PERMIAN VERTEBRATES (HB)

EVOLUTION OF MAMMALIAN MOLAR TEETH TO AND FROM THE TRIANGULAR TYPE INCLUDING COLLECTED AND REVISED RESEARCHES TRITUBERCULY AND NEW SECTIONS ON THE FOR

EVOLUTION OF MAMMALIAN MOLAR TEETH TO AND FROM THE TRIANGULAR TYPE INCLUDING COLLECTED AND REVISED RESEARCHES TRITUBERCULY AND NEW SECTIONS ON THE FORMS AND HOMOLOGIES OF THE MOLAR TEETH IN THE DIFFERENT ORDERS OF MAMMALS

EVOLUTION OF MAMMALIAN MOLAR TEETH TO AND FROM THE TRIANGULAR TYPE INCLUDING COLLECTED AND REVISED RESEARCHES TRITUBERCULY AND NEW SECTIONS ON THE FORMS AND HOMOLOGIES OF THE MOLAR TEETH IN THE DIFFERENT ORDERS OF MAMMALS (HB)

FAM. SYRPHIDAE

FAM. SYRPHIDAE

FAM. SYRPHIDAE (HB)

FAM. SYRPHIDAE (HB)

FAM. SYRPHIDAE (HB)

FAM. SYRPHIDAE (PB)

FAM. SYRPHIDAE (PB)

FIELDIANA

MANUAL OF NORTH AMERICAN DIPTERA

MANUAL OF NORTH AMERICAN DIPTERA

MANUAL OF NORTH AMERICAN DIPTERA

MANUAL OF NORTH AMERICAN DIPTERA

MANUAL OF NORTH AMERICAN DIPTERA

MANUAL OF NORTH AMERICAN DIPTERA (PB)

MANUAL OF NORTH AMERICAN DIPTERA (CLASSIC REPRINT)

MANUAL OF NORTH AMERICAN DIPTERA (HB)

MANUAL OF NORTH AMERICAN DIPTERA (HB)

MANUAL OF NORTH AMERICAN DIPTERA (HB)

MANUAL OF NORTH AMERICAN DIPTERA (HB)

MANUAL OF NORTH AMERICAN DIPTERA (HB)

MANUAL OF NORTH AMERICAN DIPTERA (PB)

MANUAL OF NORTH AMERICAN DIPTERA (PB)

MANUAL OF NORTH AMERICAN DIPTERA - PRIMARY SOURCE EDITION

MANUAL OF NORTH AMERICAN DIPTERA - PRIMARY SOURCE EDITION

MANUAL OF THE FAMILIES AND GENERA OF NOR (PB)

MANUAL OF THE FAMILIES AND GENERA OF NORTH AMERICAN DIPTERA

MANUAL OF THE FAMILIES AND GENERA OF NORTH AMERICAN DIPTERA

MANUAL OF THE FAMILIES AND GENERA OF NORTH AMERICAN DIPTERA

MANUAL OF THE FAMILIES AND GENERA OF NORTH AMERICAN DIPTERA

MANUAL OF THE FAMILIES AND GENERA OF NORTH AMERICAN DIPTERA (CLASSIC REPRINT) (PB)

MANUAL OF THE FAMILIES AND GENERA OF NORTH AMERICAN DIPTERA (HB)

MANUAL OF THE FAMILIES AND GENERA OF NORTH AMERICAN DIPTERA (HB)

NORTH AMERICAN CONOPIDAE; STYLOGASTER, DALMANNIA, ONCOMYIA

NORTH AMERICAN PLESIOSAURS

NORTH AMERICAN PLESIOSAURS

NORTH AMERICAN PLESIOSAURS (FIELDIANA, GEOLOGY, VOL.2, NO.1)

NORTH AMERICAN PLESIOSAURS (HB)

NORTH AMERICAN PLESIOSAURS (HB)

ON THE CLASSIFICATION OF NORTH AMERICAN DIPTERA, VOLUMES 1-3

ON THE DIPTERA OF ST. VINCENT (WEST INDI (PB)

ON THE DIPTERA OF ST. VINCENT (WEST INDIES): DOLICHOPODIDÏ¿½ AND PHORIDÏ¿½ (CLASSIC REPRINT) (PB)

ON THE OSTEOLOGY OF NYCTOSAURUS (NYCTODACTYLUS), WITH NOTES ON AMERICAN PTEROSAURS VOLUME FIELDIANA, GEOLOGY, VOL.2, NO.3

OSTEOLOGY OF THE REPTILES

OSTEOLOGY OF THE REPTILES (HB)

OSTEOLOGY OF THE REPTILES (HB)

PERMO-CARBONIFEROUS VERTEBRATES FROM NEW MEXICO

PERMO-CARBONIFEROUS VERTEBRATES FROM NEW MEXICO (HB)

SYNOPSIS OF THE FAMILIES AND GENERA OF NORTH AMERICAN DIPTERA

SYNOPSIS OF THE FAMILIES AND GENERA OF NORTH AMERICAN DIPTERA

SYNOPSIS OF THE FAMILIES AND GENERA OF NORTH AMERICAN DIPTERA (HB)

SYNOPSIS OF THE FAMILIES AND GENERA OF NORTH AMERICAN DIPTERA, EXCLUSIVE OF THE GENERA OF THE NEMATOCERA AND MUSCIDAE, WITH BIBLIOGRAPHY AND

SYNOPSIS OF THE FAMILIES AND GENERA OF NORTH AMERICAN DIPTERA, EXCLUSIVE OF THE GENERA OF THE NEMATOCERA AND MUSCIDAE, WITH BIBLIOGRAPHY AND NEW SPECIES, 1878-88

SYNOPSIS OF THE FAMILIES AND GENERA OF NORTH AMERICAN DIPTERA, EXCLUSIVE OF THE GENERA OF THE NEMATOCERA AND MUSCIDAE, WITH BIBLIOGRAPHY AND NEW SPECIES, 1878-88 (HB)

SYNOPSIS OF THE FAMILIES AND GENERA OF NORTH AMERICAN DIPTERA; EXCLUSIVE OF THE GENERA OF THE NEMATOCERA AND MUSCIDAE, WITH BIBLIOGRAPHY AND NEW SPECIES, 1878-88

SYNOPSIS OF THE NORTH AMERICAN SYRPHIDAE

SYNOPSIS OF THE NORTH AMERICAN SYRPHIDAE

SYNOPSIS OF THE NORTH AMERICAN SYRPHIDAE

SYNOPSIS OF THE NORTH AMERICAN SYRPHIDAE

SYNOPSIS OF THE NORTH AMERICAN SYRPHIDAE

SYNOPSIS OF THE NORTH AMERICAN SYRPHIDAE (HB)

SYNOPSIS OF THE NORTH AMERICAN SYRPHIDAE (HB)

SYNOPSIS OF THE NORTH AMERICAN SYRPHIDAE - PRIMARY SOURCE EDITION

THE EVOLUTION OF VERTEBRAE, AND, THE OST (PB)

THE OSTEOLOGY OF THE REPTILES

THE OSTEOLOGY OF THE REPTILES (HB)

THE OSTEOLOGY OF THE REPTILES - PRIMARY SOURCE EDITION

THE OSTEOLOGY OF THE REPTILES - SCHOLAR'S CHOICE EDITION

WATER REPTILES OF THE PAST AND PRESENT

WATER REPTILES OF THE PAST AND PRESENT

WATER REPTILES OF THE PAST AND PRESENT

WATER REPTILES OF THE PAST AND PRESENT

WATER REPTILES OF THE PAST AND PRESENT

WATER REPTILES OF THE PAST AND PRESENT (CLASSIC REPRINT) (PB)

WATER REPTILES OF THE PAST AND PRESENT (HB)

WATER REPTILES OF THE PAST AND PRESENT (HB)

WATER REPTILES OF THE PAST AND PRESENT (HB)

WATER REPTILES OF THE PAST AND PRESENT (HB)