RJ. de Beaumont on the Glacier Theoi^. 117 



By combining these numbers with the distances of the points 

 to which the heights they express refer, measured on Keller's 

 map, I have prepared the following table, which indicates the 

 inclination of the Upper limit of the erratic zone from one 

 point to another. 



Incl'maiions of the Uj)pcr Limit of the Erratic Zone. 



Points compared. 



Bernard, 



Griinsel, 

 .aSmcn, . 

 -lErnen, . 

 Bricg, . 

 Brieg, . 

 Martigny, 

 Great Saint- 

 Pi an -y-bcuf. 

 Plan-y-beuf, 

 Martij;ny, 

 Martigny, 

 Monthey, 

 Martigny, 

 Mimissc, 

 Miuiisse, 

 Geneva, 

 Martigny, 

 Playau, . 

 Martigny, 

 Chasseron, 

 Playau, . . 

 Chasseron, 

 Plan-y-beuf, 

 Chasseron, 

 Great Saint-Bernard, 

 Chasseron, . . 

 Griinsel, . . . 

 Martigny, . . . 

 Grimsel, . . . 

 Playau, .... 

 Grimsel, . . . 

 Chasseron, . . 

 ^rnen, .... 

 Playau, .... 

 Nivi of the Ober- 



Aar, 



Grimsel . . . 

 (Limit of the roches 



ruoutonnies), > 



Grimsel, .... 

 Brunig, • . . , 

 (The two Coh merely^ 



are comijared) 



13; 500 



20,000 



DifTtrcnce 



of Height of 



tlie two 



Points. 



487 



203 



70 



731 



319 



293 



425 



505 



228 



400 



172 



719 



1450 



850 



1078 



1250 



591 



C24 

 1037 



Slope in De- 

 cimal Frac- 

 tions. 



0.019480 

 0.018312 

 0.000875 

 0.048730 

 0.017722 

 0.016277 

 0.009659 

 0.011938 

 0.005182 

 0.004348 

 0.003510 

 0.006536 

 0.0 11 COO 

 0.007025 

 0.006333 

 0.005869 

 0.004221 



0.046211 

 O.035758 



Slope in De- 

 grees, Mi- 

 nuti s, and 

 Seconds. 



1 6 57 



1 2 56 



3 1 



2 47 24 



1 55 

 55 57 

 33 12 

 41 2 

 17 48 

 14 56 

 12 4 

 22 20 

 39 52 

 24 9 

 22 27 

 20 10 

 14 3 



2 38 45 

 2 2 62 



