darton] MARYLAND. 135 
Feet. 
27-34 red clay, with water. 
34-42 dark marl. 
42-54 red clay and sand mixed. 
54-72 hard, tough, sandy clay. 
72-87 red, tough clay. 
87-95 hard, sandy clay. 
.95-110 red, hard clay. 
110-112 rock. . 
112-122 hard, sandy clay. 
122-1 25 very dark, sandy clay. 
125-134 dark clay and sand. 
134-142 mixed red sand and clay. 
142-160 dark, sandy clay. 
160-170 blue, hard, sandy clay. 
170-220 gray sand and clay. 
220-230 dark-blue sand and sandy clay. 
230-260 hard clay and sand. 
260-285 very fine, gray, sandy clay, with little gravel. 
285-302 light-gray, sandy clay. 
302-313 clay and sand. 
313-328 gray, sandy clay. 
328-340 clay and sand. 
340-346 clay and sand, with little dark-red gravel. 
346-353 sand, mixed with red clay. 
353-358 part red and part gray clay. 
358-360 soft rock. 
360-365 red clay. 
365-368 hard, red beds. 
368-376 hard, red beds, with blue intercalations 
376-387 blue and red beds. 
387-392 blue beds and sand. 
392-400 clay, mixed with sand. 
400-409 sandy clay and rock. 
409-424 gray rock. 
424-435 mixed sand and sandy clay. 
435-442 ? 
442-445 blue, sandy clay and sand. 
445-456 sandy clay and sand. 
456-463. 5 hard sand, with gravel. 
The upper beds are earlier Columbia and Pamunkey formation. The 
Potomac formation was entered at about 42 feet and the boring stopped 
in the lower portion of the formation. The basal beds lie about 150 
feet deeper and probably would have afforded a larger water supply. 
An analysis of the water by Joseph Westerson, dated December 24, 
1895, gave 23.8 grains per gallon of solid matter, consisting exclusively 
of chloride of sodium. Free ammonia was reported as 0.008 milligram 
per liter, and albuminoid ammonia as 0.09 milligram per liter. 
Laurel, Prince George County. — A well on the farm of Mrs. J. D. 
Taylor, 3 miles southeast of Laurel, was recently bored to a depth of 
148 J feet. It pumps 10 gallons per minute, but appears to be capable 
of yielding a much larger supply. The water was found in sand and 
gravel underlying 147 feet of red clay. It rises to within 80 feet of 
the surface. 
