Same material as that in Maryland Geological survey [Report] v. 3, except that the latter contains an appendix of 80 pages on the "Laws of Maryland relating to highways".Wm. Bullock Clark, state geologist.pt. I. Introduction, including an account of the organization of highway investigations by the Maryland Geological survey, by W. B. Clark.--pt. II. The relations of Maryland topography, climate and geology to highway construction, by W. B. Clark.--pt. III. Highway legislation in Maryland, and its influence on the economic development of the state, by St. G. L. Sioussat.--pt. IV. The present condition of Maryland highways, by A. N. Johnson.--pt. V. Construction and repair of roads, by A. N. Johnson.--pt. VI. Qualities of good road-metals, a...