xii CONTENTS. 



Pg* 

 Robin Hood's Bay Ravenshill inscription fault section of the 



Lias strata Equiseta in cliff at High Whitby 13/ 



Whitby Duuurn Sinus Streoneshalh Abbey beauty of the vici- 

 nity Museum Pier dislocation of strata Sandsend Plesio- 

 saurus Kettleness Runswick Bay Staithes fossils Boulby or 

 Rockcliff Plesiosaurus Huntch'ff Saltburn Redcar Tees 

 mouth 139-143 



CHAPTER V. 

 CLIMATE. 



Relation to the physical aspect of the county. Temperature of air at 

 York, of springs, of each month. Ranges of temperature, of 

 four critical months in various places. Postponement of tempera- 

 ture in York Minster, below the surface of ground, in dales, by 

 the sea-side. Highest and lowest temperatures. Temperature of 

 night and day. Occurrence of frost. Comparison of the climate of 

 York with that of other places within and beyond the boundary of 

 the county 143-152 



Humidity of the air. Fall of rain at York, in each month, compared 

 with that of London. Fall of rain at several other places in York- 

 shire. Number of days on which rain, hail or snow falls at York. 

 Wet-bulb experiments. Experiments on the quantity of rain at dif- 

 ferent heights above the ground 152-161 



Winds. Prevalent directions of wind at York. Effect on the air, on 

 the local temperature. Coldest wind, warmest wind. Compara- 

 tive dampness of different winds. Character of rain with different 

 winds. Barometric pressure influenced by the direction of wind. 

 The daily oscillation of the barometer 161-166 



CHAPTER VI. 



MAGNETISM. 



Magnetic elements at York the declination toward the west the 

 dip from the horizon the magnetic force 166-167 



CHAPTER VII. 

 GEOLOGICAL HISTORY. 



The Natural History of the land traceable in order of succession of 

 events, but not to be expressed in chronology 168 



