About the book: 1951 / This book by the famous popularizer of science and the largest domestic entomologist, Doctor of Biological Sciences Nikolai Nikolaevich Plavilshchikov is dedicated to an ordinary pond. The author talks about how ponds are formed , what is their structure and role in nature and human economic activity. The main part of the book is devoted to the living inhabitants of ponds. After all, in order to understand the complex relationships between the natural population of a reservoir, you need to know the life of each member of this water community, know the place and significance of each aquatic animal and plant in the overall life of the pond.