On The Algebraical And Numerical Theory Of Errors Of Observations: And The Combination Of Observations is a book written by George Biddell Airy in 1875. The book focuses on the mathematical theory of errors in observational data, particularly in astronomy. It covers topics such as the propagation of errors, the combination of observations, and the adjustment of observations. Airy also provides practical examples and applications of the theory throughout the book. The book is considered a classic in the field of statistics and has been influential in the development of modern statistical methods. It is written in a clear and concise style, making it accessible to both students and professionals in the field.This scarce antiquarian book is a facsimile reprint of the old original and may contain some imperfections such as library marks and notations. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions, that are true to their original work.