VIII 



CONTENTS. 



Volume II. 



PAKT II— CONTINUED. 



Meteorology: Notes on rain-gages .... 



Meteorology : On the rain-fall at different heights 



Meteorology in its connection with Agriculture 

 Part I. General considerations 

 Part II. General atmospheric conditions 

 Part III. Terrestial physics, and temperature . 

 Part IV. Atmospheric vapor and currents 

 Part V. Atmospheric electricity . , _ . 



On Acoustics applied to public buildings . . . 



Account of a large sulphuric-acid barometer in the Smith- 

 sonian Institution ...... 



Statement in relation to the history of the electro-magnetic 

 telegraph ....... 



On the application of the telegraph to the premonition of 

 weather-changes ...... 



On the utilization of aerial currents in Aeronautics . 



Systematic meteorology in the United States . 



Remarks on " Vitality " ..... 



Suggestions as to the establishment of a Physical Observatory 



Effect of the Moon on the weather .... 



On the organization of a scientific society. [An address.] . 



On the employment of mineral oil for light-house illumination 



Investigations relative to illuminating materials 



On the organization of local scientific societies 



The method of scientific investigation, and its application to 

 some abnormal phenomena of sound. [An address.] 



Observations in regard to thunder-storms 



Opening address to the National Academy of Sciences 



Closing address to the National Academy of Sciences 



