Les Grands Froids

''Les grands froids'' by Émile Bouant is a scientific publication written in the late 19th century. The work explores the effects of extreme cold on humans, animals, and plants, drawing on historical observations to illustrate its points. The book delves into the physiological adaptations of humans against cold temperatures and examines how various climates influence life forms across the globe. The opening of ''Les grands froids'' introduces the relationship between temperature sensations and actual thermometric measurements. Bouant discusses the inaccuracies in assessing heat and cold through direct bodily sensations, emphasizing the need for a precise instrument—the thermometer—which allows for standardized measurement of temperature fluctuations. He further outlines the different physiological responses of humans to extreme cold and heat, detailing how both clothing choices and biological processes help maintain body temperature. The beginning sets a scientific tone, highlighting the importance of understanding temperature impacts on life and preparing for extreme weather conditions.