Hydrostatical and Pneumatical Lectures is a book written by Roger Cotes and originally published in 1775. The book is a collection of lectures on the topics of hydrostatics and pneumatics, which are branches of physics that deal with the behavior of fluids and gases, respectively. The book is divided into two parts, with the first part covering hydrostatics and the second part covering pneumatics. In the hydrostatics section, Cotes discusses the properties...