This is a collection of lectures on anatomy, physiology, and medical practices specifically targeted towards seamen. The book is divided into four lectures, covering various topics such as the composition and connection of different parts of the human body, the circulation of blood, the pulse, bleeding, different kinds of wounds and their treatment, fractures, burns, drowning, skin diseases, venereal diseases, and the bites of venomous animals. The lectures also provides a guide the on requisite medicines and tools necessary for medical treatment at sea and contain detailed illustrations.