CONTENTS. 



PROTECTION OF VEGETATION FROM COLD . . 



Paper read before (lie Royal Society of Edinburgh, 

 April 4, 1864. 



THE "DOCTRINE OF UNIFORMITY" IN GEO- 

 LOGY BRIEFLY'KEKUTEI ) 6 



Paper read before the Royal Soeicly of Edinburgh, 

 December 18, 1865. 



APPENDIX. ESTIMATE OF PRESENT ANNUAL Loss 



OF HEAT FROM THE EARTH 7 



ON GEOLOGICAL TIME 10 



Address delivered before the Geological Society oj 

 Glasgow, February 27, 1868. 



APPENDIX. ON THE OBSERVATIONS AND CALCU- 

 LATIONS REQUIRED TO FIND THE TIDAL RETARDA- 

 TION OF THE EARTH'S ROTATION 65 



ON GEOLOGICAL DYNAMICS 73 



Address to the Geological Society of Glasgoiv, 

 April 5, 1869. 



