Cross Section Roman Pood (Appian WayJ. 



Cross Section French Road (Roman Method), , 

 previous to 177$. 



Cross Section of Treso'jguet Kcad, ms. 



Cross Section Te> Word 'Road IB20 



Cross Section Macadam Rood, Idle. 



ross Section of Modern Macadam (Massachusetts) Road 



Cross Section of Modern Macadam Road. 



Cross-sections of different types of roads. 



