INDEX OF SUBJECTS. 769 



INDEX OF SUBJECTS. 



PART L METHODS OF MEASUREMENT. 

 CHAPTER L MEASUREMENT OF ANGLES. 



PAGE 



Principal Kinds of Measurements I 



The Balance . . . , 2 



Measurement of Angles 3 



Mirror Method 6 



Calculation of the Deflection 7 



Graduation of the Scale 9 



Limit of Accuracy in the Mirror Method 10 



Concave Mirrors 14 



Projection of Images 16 



CHAPTER II. MEASUREMENT OF OSCILLATIONS. 



Equations of the Oscillatory Motion 17 



Isochronous Oscillations 18 



Pendulum Motion 20 



Damping of the Oscillations 21 



Resistance Proportional to the Square of the Velocity 21 



Resistance Proportional to the Velocity 24 



Isochronous Oscillations 25 



Geometrical Representation of the Equation of Motion 29 



Aperiodic Motion 30 



Observation of Oscillations 33 



Reduction of Pendulum Vibrations 35 



Example of Reduction 39 



Gauss's Method 42 



VOL. II. D D D 



