870 



APPENDIX. 



For the convenience of the field geologist a table is here introduced containing the 

 azimuth for the 20th day of each month at the hours from 6 A. M. to 6 P. M., mean 

 time, in the latitudes 38° and 42° : — 





Jan. 



Feb. 

 Mar. 

 April 

 May- 

 June 

 July 

 Aug. 

 Sept. 

 Oct. 

 Nov. 

 Dec. 



Lat. 38° 

 Lat. 42° 



Lat. 38° 

 Lat. 42° 



Lat. 38° 

 Lat. 42° 



Lat. 38° 

 Lat. 42° 



Lat. 38° 

 Lat. 42° 



Lat. 38° 

 Lat. 42° 



Lat. 38° 

 Lat. 42° 



Lat. 38° 

 Lat. 42° 



Lat. 38° 

 Lat. 42° 



Lat. 38° 

 Lat. 42° 



Lat. 38° 

 Lat. 42° 



Lat. 38° 

 Lat. 42° 



Southeast. 



VI. VII. VIII. IX. X. XI 



91-1 

 91-3 



105-3 

 104-5 



108-6 

 108-0 



107 -7 



100-7 



99-3 

 98-9 



81-5 

 81-2 



89-7 

 88-5 



97-1 

 95-0 



100-5 

 99 -0 



99-0 

 97-4 



91-0 

 90-0 



80-0 

 79-4 



70-4 

 69-7 



57-2 

 57-0 



71-5 

 70-4 



80-0 

 77-7 



88-0 

 85-0 



91-8 

 89-5 



Sl-0 

 79-4 



53-0 

 53-1 



46-3 

 45-8 



60-0 

 58-0 



81 -S 

 78-2 



70-2 

 67-1 



57-6 

 55.5 



47-5 

 45-9 



41-3 

 40-8 



42-1 

 41*8 



33-6 

 33-0 



45-2 

 43-1 



53-S 

 49-1 



68 

 63-0 



66-3 

 61-0 



54-4 

 51 



32-6 

 31-0 



27-5 

 27-3 



29-5 

 28-9 



19-0 

 19-0 



23-6 

 22-2 



26-2 

 24-5 



30-4 

 27-3 



44-8 

 39-2 



44-1 



38-2 



31-6 

 29-6 



21-7 



19-9 



14-6 

 13-8 



12-4 

 12-2 



1.5-1 

 14-7 



Noon. 



2-9 S. E. 

 4-3 S. E. 

 3-0 S. E. 

 0-4 S.W. 

 2-4 S. W. 

 6 S. E. 

 3-8 S. E. 

 1-5 S.E. 

 2-4 S. W 

 4-6 S.W 

 3-7 S. W, 

 0-5 S.W, 



Southwest. 



13-7 

 12-9 



15-0 

 14-0 



31-2 



28-0 



41-4 

 37-3 



37-1 

 32-3 



29-6 

 26-U 



26-5 

 24-5 



24-0 

 *2-6 



20-2 

 19-4 



29 -n 



27-9 



32-1 

 31-0 



64-5 

 59:5 



57-3 



52-4 

 49-4 



45-7 

 43 2 



34-5 

 33-8 



30-4 



21-8 



42-3 

 41-3 



47-0 

 45-8 



5G-4 

 53-4 



78-5 

 74-9 



77-3 

 73-4 



60 -5 

 ,38-4 



54-0 

 52 5 



47-2 

 46-6 



43-0 

 42-5 



IV. 



V. 



53-8 

 52-7 



63 •( 

 63-, 



59-2 

 .58-4 



69- 



69- 



69-2 

 66-5 



79-. 



78-' 



80-7 

 78-3 



90-. 



89 •( 



89-1 

 C6-4 



98-( 

 96-< 



90-8 

 89-1 



99-( 



98- 



91-0 

 85-5 



97- 

 95- 



79-2 

 78-3 



90-< 

 89- 



72-5 

 70-8 



82. 

 81- 



65-2 

 64-4 



75- 

 74- 



58-0 

 57*7 



67- 



54-0 

 53-8 



63- 



