proponed ly the Geohgkal Society. 423 



tion passing through the base, or the grotind plan ; and the 

 points of the compass between which the long diameter lies ? 



5. The degree of declivity on every side with regard to the 

 circumjacent plain ? 



6. Do they present on any side abrupt craggy faces, and to 

 what points of the compass are these opposed ? 



7. Do these precipices extend to the foot of the mountain, or 

 are there at their bottom sloping banks of loose fragments ? 



8. Is the surface smooth or rugged ? « 



— drv or marshy ? 



9. To what height does vegetation ascend, and what are the 

 prevailing plants in different parts of the ascent* ? 



10. The springs, streams, lakes, hollows, gullies, caverns ? 



1 1 . Whether any loose blocks of stone are found on the sur- 

 face, different from those of which the mountain is composed ? 



In addition to the preceding Inquiries. 

 If in a Group, 



12. Are the component mountains of nearly the same height ? 



13. Which are highest, the central or external ones ? 



If in a Chain f 



14. The outline of the chain ? 



15. Its highest point ? 



16. Its length? 



17. Whether straight or curved, and extended between what 

 points of the compass ? 



IS. Whether any lateral ridges proceed from the main chain ? 



§ II. Concerning Valleys. 



1 . Their geographical boundaries ? 



2. Their length, breadth, depth f ? 



3. Are they occasionally dilated and contracted, Or do their 

 sides pr3serve an uniform parallelism ? 



4. Is the bottom or floor even or rugged? — nearly level or 

 much inclined ? If inclined, whether regularly or interruptedly, 

 ;ind in what direction ? 



r>. Are the slopes that form their sides smooth and gentle, or 

 rugged and precipitous ? 



6. Do the opposite sides consist of the same kind of rock, and 

 do they correspond in the inclination of their beds or strata ? 



7. Arc there on their sides depositions of water-worn and 

 rounded pebbles, either loose or compacted, and to what height 

 do they reach ? 



• What arc the variations in atmospheric temperature and moisture at 

 the base, iniddl*-, and summit? — EniT. 

 t Their temperature, moisture, ami prevailing winds ?— Edit. 



D d 4 8. >\rc 



