In responce to Dr. Schyuler's querry about when Macacadam was first
invented.

Parrington notes it was first used in Philadelphia in 1871.

Parrington, Michael
 1983   "The History and Archaeology of Philidelphia Roads, Streets, and
Utility Lines.", Pennsylvania Archaeologist, Vol. 53, No. 3:19-31

\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\|///////////////////////////////
| Keith R Doms                       University of Delaware  |
| 011 Munroe Hall                     Dept. of Anthropology  |
|               (302) 831-6590  [log in to unmask]                |
//////////////////////////////|\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\