PROJECTION TABLES. 



165 



Table XIX. — For projection of maps of large areas. 

 [Extracted from Appendix No. 6, U. S. Coast and Geodetic Survey Report for 1884.] 



LENGTHS OF DEGREES OF THE MERIDIAN. 



* These quantities express tbe number of meters and statute miles contained within an arc of which the degree of lati- 

 tude named i* the middle; thus, the quantity, 111032.7, opposite latitude 40°, is the number of meters between latitude 39° 

 30' and latitude 40° 30'. 



