Subject
4 free books about bacteriology, free to read online. Chapter 1 of any book is free, no account needed.
The Fundamentals of Bacteriology
Charles Bradfield Morrey
Bacteria Especially as they are related to the economy of nature, to industrial processes, and to the public health
Sir George Newman
Bacteria in Daily Life
Grace C. Frankland
The Story of Germ Life
H. W. Conn
