The Invertebrates – Protozoa Through Ctenophora

The Invertebrates — Protozoa Through Ctenophora by Libbie Henrietta Hyman 1940 McGraw‑Hill Book Company, Inc. is the first volume in a landmark six‑volume zoological treatise by American zoologist Libbie Henrietta Hyman, originally published in 1940 in New York and London by McGraw‑Hill Book Company, Inc. as part of the respected McGraw‑Hill Publications in the Zoological Sciences series. Volume I, Protozoa Through Ctenophora, remains a foundational reference in invertebrate zoology, synthesising vast scientific knowledge of early animal groups into a single, authoritative narrative for advanced students and researchers.

In The Invertebrates — Protozoa Through Ctenophora, Hyman systematically examines the biology, classification, morphology, and life histories of the simplest and most ancient multicellular animal lineages, beginning with the protozoans and extending through the gelatinous comb jellies (Ctenophora). Written with scientific precision and supported by extensive research, the volume combines descriptive text with figures, diagrams, and references that illuminate key biological concepts and evolutionary relationships among early invertebrate groups. Hyman’s work was conceived to fill a recognised gap in English‑language zoological textbooks by offering a comprehensive, single‑author treatment of these organisms.

Spanning more than 720 pages, The Invertebrates — Protozoa Through Ctenophora reflects Hyman’s commitment to clarity and scholarly rigour. It was designed for advanced undergraduates, graduate students, and professional zoologists seeking an integrated understanding of non‑vertebrate animal life, and it continues to be cited as a critical scientific reference for historical and comparative invertebrate studies.

This volume laid the groundwork for subsequent installments in her monumental treatise, eventually encompassing flatworms, segmented worms, echinoderms, molluscs, and other major invertebrate phyla. As the opening volume, The Invertebrates — Protozoa Through Ctenophora by Libbie Henrietta Hyman 1940 McGraw‑Hill Book Company, Inc. stands as a historically important and scientifically rich contribution to twentieth‑century zoology, reflecting decades of research and synthesis by one of the field’s foremost scholars.

Condition: Very Good – Shelf worn cloth boards. Prior ownership sticker writing in ink and stamp on inner cover