Geography of Uastci'ii .Isia. — Ilobbs. 
L.\ND Steps and of the Entire Fault Line.* 
73 
Extent of the step in tlie 
direction of the n^eridan 
Length 
of the 
crescent 
1 Bogeni 
t 
Offset of each step to 
the eastward 
Relation 
of 
m to n 
In degrees of 
latitude 
approximately 
In kilometers 
on meridian 
approximately 
In degrees of 
longitude 
approximaiely 
In kilometers 
approxiniately 
X <nl 
222^-25 N. 
25-32 '^ N. 
32 '^-38 N. 
38 - 54 N. 
50 - 62 N. 
62 - 66 N. 
830 
600 
1760 
1330 
440 
450 
1200 
1900 
2000 
2600 
2 ''^° 
4%° 
3° 
8° 
i8,;^° 
49° 
250 
270 
580 
IIOO 
2400 
I : I 
1.5 : I 
2.2:1 
3 : I 
1.2:1 
.18 : I 
has therefore used the German spelHng of v. Richtofen, plac- 
ing- after each word in parenthesis the speUing of the Century 
Atlas. To render the geographic descriptions intelligible a 
map is necessary, and one of the excellent German maps from 
Andrees Handatlas. upon which the tectonic lines referred 
to and the great circle to which they approximate have been 
sketched in has been furnished from v. Richtofen's description. 
It should be used as a guide map in following v. Richtofen's 
descriptions which follow : The map of figure i is on a 
nnich smaller scale and includes the area covered by figure 2, 
mainlv between the Yellow and Amur rivers. 
RESULTS AND CQNCLUSIOXS. 
A. MORPHOLOGICAL RELATIONS. 
a. Along a line which begins .somewhat .sonth of the Tropic of 
Cancer in about 130° east longitude, and which may be followed to 
the Arctic circle in iQO° east longitude, are arranged a series of con- 
tiguous crescent-shaped land-steps (Laiidstaffcl) convex to the south- 
eastward, which have the peculiarity in common that the section of the 
earth's crust immediately to the east always stands lower than the one 
to the west. 
* All figures are only approximate values. 
i rhc equatorial limb is here reckoned only from the junction with the 
meridional section which follows to the south. 
t Reckoned as the average breadth. 
