CONTENTS. 



Preface , 1 



Chapter I. — Introductory 3 



II. — Character and Method of Experiments 7 



III.— The Suspended Plane 12 



IV. — The Resultant Pressure Recorder 15 



V. — The Plane-Dropper 26 



VI. — The Component Pressure Recorder 48 



VII. — The Dynamometer-Chronograph 75 



VIII. — The Counterpoised Eccentric Plane 89 



IX.— The RolUng Carriage 94 



X. — Summary 105 



Appendix A 109 



Aj)pendix B 113 



Appendix C 114 



(in) 



