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PREFACE
CHAPTER I Introduction
CHAPTER II Historical Sketch
CHAPTER III The General Features of Endoplasmic Streaming
CHAPTER IV The Transformation of Endoplasm into Ectoplasm
CHAPTER V Pseudopods and the Nature of the Ectoplasm
CHAPTER VI The Species Question
CHAPTER VII Experiments on the Surface Layer of the Ameba
CHAPTER VIII ON THE NATURE OF THE SURFACE LAYER
The book explores the humble yet remarkably instructive movements of the ameba, a single‑celled organism whose shifting shape and internal streaming have long intrigued scientists. By linking the behavior of these cells to white‑blood corpuscles, comparative psychology, physiology, and evolutionary theory, it shows how a simple life form can illuminate complex processes across many disciplines. Readers will discover why the ameba serves as a natural laboratory for studying the fundamentals of motility, cognition, and the origins of animal life.
Building on a rich historical record that dates back to the 18th‑century discovery of protoplasmic streaming, the author presents a series of meticulous observations and experiments. Central to the work is the surprising claim that organisms lacking orienting organs tend to follow orderly helical or spiral paths when unhindered. Detailed laboratory studies of ameboid motion under controlled conditions illustrate this pattern and suggest a deeper, perhaps universal, principle governing movement in living systems.
Language
en
Duration
~5 hours (304K characters)
Publisher of text edition
Project Gutenberg
Credits
Produced by Bryan Ness, Chuck Greif and the Online Distributed Proofreading Team at http://www.pgdp.net (This file was produced from images generously made available by The Internet Archive)
Release date
2017-08-26
Rights
Public domain in the USA.
Subjects

1883–1980
A pioneering American protozoologist, he wrote vivid, detailed studies of amoebas at a time when the hidden world of single-celled life was still being mapped. His work helped turn tiny organisms into subjects of careful observation, experiment, and wonder.
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