CONTENTS, 



PART I. 



PHYSICAL OPTICS. 



PAGE 



I. On the Double Refraction of Light in a Crystallized Medium, 



according to the principles of Fresnel, .... 1 



II. On the Intensity of Light when the Vibrations are Elliptical, . 14 



III. Note on the subject of Conical Refraction, . . . 17 



IV. Geometrical Propositions applied to the "Wave Theory of Light, 20 

 V. A Short Account of some Recent Investigations Concerning the 



Laws of Reflexion and Refraction at the Surface of Crystals, 55 



VI. Laws of Reflexion from Metals, 58 



VII. On the Laws of the Double Refraction of Quartz, . . .63 

 VIII. On the Laws of Reflexion from Crystallized Surfaces, . . 75 

 IX. On the Probable Nature of the Light Transmitted by the Dia- 

 mond and by Gold Leaf, 82 



X. On the Laws of Crystalline Reflexion, . . ... .83 



XL On the Laws of Crystalline Reflexion and Refraction, . . 37 

 XII. On a new Optical Instrument, intended chiefly for the purpose 



of making Experiments on the Light Reflected from Metals, 138 



XIII. Laws of Crystalline Reflexion. Question of priority, . . 140 



XIV. An Essay towards a Dynamical Theory of Reflexion and Refrac- 



tion, 



XV. On the Optical Laws of Rock-Crystals, 185 



XVI. On a Dynamical Theory of Crystalline Reflexion and Refraction : 



(Supplement), 194 



