Differential Geometry of Three Dimensions

THE distinctive feature of Prof. Weatherburn's treatment is the great use that is made of vector analysis. At first sight a page full of terms such as div, rot, grad, and dyadic looks rather alarming, and the Clarendon type used for vectors stands out from the ordinary type used for scalars, producing a somewhat unattractive mixture, as if the printing had been done by an unskilled hand. However, a careful study will show the advantage of vector methods. They are very concise, and yet they emphasise the geometric considerations which are often obscured by the use of co-ordinates.Differential Geometry of Three Dimensions.By Prof. C. E. Weatherburn. Vol. 2. Pp. xii + 239. (Cambridge: At the University Press, 1930.) 12s. 6d. net.