First published in 1931, this book is the second edition of a 1917 original. The text provides an account of the method of least squares, aiming to obtain the best interpretation of the results of experiment without consideration of the way in which these results are obtained. Elaborate descriptions of instruments and experimental methods are avoided, allowing for a concise and economical account that concentrates on key elements of the subject. This is a detailed and well-organized book that will be of value to anyone with an interest in least squares and the development of mathematics.

First published in 1934, and then in a second edition in 1939, this book gives a full account of theoretical meteorology as it was understood at the time. Where theory failed to explain phenomena, the author limited himself to a description of the phenomena and an indication of such theory as was felt to be helpful. Little of the first edition was omitted, but additions were made to many chapters of the second edition, and the chapter on turbulence in the atmosphere was completely rewritten.

With a very well-regarded and- highly-rated season of live BBC TV police drama behind them in early 1962, producer David Rose and story editor John Hopkins consolidated their success with a second run of the series in 1962-1963. All the original cast were initially back, although Jeremy Kemp and Dorothy White would depart the show mid-run and, tragically, Leonard Williams unexpectedly died three months into the season. New actors would also be introduced who would stay with the show for some time - Colin Welland, Robert Keegan and Michael Forrest - as others fell by the wayside before the second run was complete, including James Cossins and Leonard Rossiter. This book tells how and why they came and went. This book series recounts the on and off-screen story of Z Cars with many of those involved: actors, writers, directors and the producer. Telling for the first time the previously untold history of the series.

The BBC crime drama series Z Cars was created in 1961 as an alternative to the safe and cosy police series Dixon of Dock Green. While showing hard-hitting stories that reflected the reality of 1960s policing, real policemen followed it avidly while their superiors initially protested. With access to extensive BBC paperwork and series creator Troy Kennedy Martin's own files, this book details the creation and development of the programme through the groundbreaking first season. With many recollections from those involved - actors, writers, directors and sole producer - this book is their story of what happened on and off set. With full synopsis of the season's episodes, many of which no longer exist, most of the shows in this series have not been seen since their initial live broadcasts. 274 illustrated A4 pages, with synopsis of Troy Kennedy Martin's initial drafts for the first episode and an unmade script from later in the season. Perfect for any fan of quality crime drama.