SCENOGRAPHICAL GEOLOGY. 621 



this outline drawing for a description of many of the objects visible 

 from Mt. Washington. These profiles will very materially aid any one 

 in studying the topography of the surrounding country. 



The most interesting features of one's stay upon this summit are de- 

 rived from meteorological sources, the sunrise and sunset, shadows of 

 the mountain upon clouds and adjacent ranges, wonderful colors, shapes, 

 and movements of clouds, the perception of the beginning and progress 

 of storms, hurricanes, frost-work, variation in temperature and humidity, 

 fluctuations in the barometer, conflict of winds and clouds, etc. Sketches 

 of some of these phenomena have been occasionally presented in this 



Fig. 85. ADAMS AND MADISON, FROM THE OLD GLEN PATH. 



volume, especially what is peculiar to the winter. A heliotype of this 

 sort faces page 104, illustrating the coating of the summit with snow-ice 

 in the winter. The first is a copy of a very distinct photograph of the 

 Carter range on the east, but does not do justice to the subject. The 

 other shows delicate frost-work upon the Bourne monument and the 

 low trestle-work of the railway. Opposite page 1 1 2 are four more views, 

 selected from those taken originally by Clough and Kimball in mid- 



