John Collins Warren

John Collins Warren
John Collins Warren (1778–1856) was an American surgeon and medical educator, renowned for his contributions to surgery and anatomy. He co-founded Massachusetts General Hospital and served as its first surgeon, where he performed the first public demonstration of ether anesthesia in 1846, a landmark event in medical history. Warren published several influential works, including "Surgical Observations on Tumours" and "The Great Tree on Boston Common," blending scientific knowledge with public discourse. As a professor at Harvard Medical School, he played a pivotal role in advancing medical education and surgical practices in the United States.

Author's Books:


In the course of the year 1851, an account was circulated of the discovery of an immense egg, or eggs, in the Island of Madagascar. The size of the eggs spoken of was so disproportionate to that of any previously known, that most persons received the account with incredulity; and, I must confess, I was one of this number. Being in Paris soon after hearing of this report, I made inquiry on the subject,... more...

Morbid changes in the organization of the heart are so frequent, as to have attracted the observation of those, who have devoted any attention to the study of morbid anatomy. Derangements of the primary organ of the circulation cannot exist without producing so great disorder of the functions of that and of other parts, as to be sufficiently conspicuous by external signs; but, as these somewhat... more...