Dover Books on Biology

This work by Russian microbiologist G. F. Gause broke ground for all subsequent research in the biomathematics of populations. Gause's work is essential in giving modern science its grasp of the complexities of population competition; it depicts a microcosm of the process at work on a larger scale throughout the biosphere, and it provides readers with the means for the process's quantitative evaluation. Starting with an exploration of the struggle for existence in nature, Gause summarizes the theoretical and experimental work that preceded his own. A discussion of the tools of mathematical biology follows, deriving formulas for the measurement of such basic concepts as potential population increase, population saturation, environmental resistance, and the intensity of the struggle for existence. Gause then reports in depth on his own experimental work and his conclusions: that the periodic expansions and contractions of populations are dependent upon the introduction of new variables and are not an inherent property of the predator-prey relationship. Easily understood by anyone acquainted with higher mathematics, this book constitutes essential reading for modern students of population dynamics.

Outspoken writings by the founder of modern nursing record fundamentals in the needs of the sick that must be provided in all nursing. Covers such timeless topics as ventilation, noise, food, bed and bedding, light, cleanliness, and observation of the sick.

Written by a noted biology historian, this classic volume provides the first in-depth account of the 1953 discovery of the molecular structure of DNA by James Watson and Francis Crick. Crick himself, who also provided the Foreword, proclaimed that "no future historian of science in this area will be able to ignore this present volume."

A series of concise essays explores the foundations of modern biology - the cell, genetics, development, and evolution - for coherent definitions of some of life's seemingly inscrutable processes. Using evolution as the central theme, it examines heredity, embryonic development, and ultimately, relations between organisms and their environment.