CONTENTS OF THE CATALOGUE. 



103 



Page 



lAnnual Fall of Rain 477 



IStorms of Rain 478 



Snow and Hail 478 



Springs, Rivers, Lakes, and Seas : Water and Ice 479 



iSweetening Sea Water, and Preserving Fresh 481 



Atmospherical Electricity in General 481 



Particular Accounts of Storms 483 



Measures of Atmospherical Electricity 485 

 Preservation from Lightning. Conductors and Precautions 485 



Waterspouts 486 



Aurora JBorealis 488 



Earthquakes and Agitations. In order of Time 490 



Subterraneous Fires and Volcanos 493 



Geology 495 



Luminous Meteors 499 



Exhalations 49§ 



Atmospherical Meteors and Shooting Stars 499 



Meteors which have fallen to the Ground 501 



Natural History in General 502 



"Density of Particular Substances 503 



A Table of Specific Gravities 503 



A Table of the Capacity of different Substances for Heat 508 

 A Comparative Table of the Physical Properties of Various 



Substances 509 



General Effects of Mixture 510 



jAffinities and Combinations 510 



Mineralogy in General 510 



[Systems 511 



I Philosophy of Mineralogy 5 1 1 



Form s of Primary Aggregation. Crystallization 511 



Botany in General 511 



[Systems 511 



IVegetable Anatomy and Physiology 512 



Zoology in General -516 



ISystems 5l6 



{Physiology 5l6 



Cultivation of 5fatural Productions, including Agriculture 



and Horticulture 519 



History of Terrestrial Physics 519 



