BY the pamphlet and diagrams prepared by Mr. McGegan he suggests a method by which, when an observer has taken an altitude of a star the identity of which is doubtful, he can, if he also observes ...

GRAPHICAL and mechanical representations of practical equations are especially useful to the engineer, and this volume has been written to provide a systematic course in the subject.

Graphical methods of assessing the validity of a probability model, and of estimating location and scale parameters, have been widely applied over many years. A variety of different prescriptions have ...