IN THE UNITED STATES. 



405 



MARYLAND. 



Location. 



Authority. 



Aberdeen B. & O. R. R . 



Do. .aluminum tablet on foundation of j U. S. G. S. 

 First National Bank building. 



Do. .copper bolt in box colvert at mile- U. S. G. S 



post 65. 



Accident, aluminum tablet on foundation of U. S. G. S 



Lutheran Church. 



Do. . .spike in flag pole near blacksmith U. S. G. S 



shop. 



Adamstown B. & O. R. R 



Adamsville Q. A. R. R 



Agricultural College U. S. C. & G. S. . . 



Aiken B. & O. R. R 



Aireys P., B. & W. R. R. 



Alberton B. & O. R. R 



Alesia W.M. R. R 



Allegheny Heights, Garrett County U. S. G. S 



Altamont B. & O. R. R 



Ammendale i B. & O. R. R 



Annapolis, B. & O. R. R., ferry wharf gage ! U. S. C. & G. S. 



on north side of Severn River. 



Do . . .5-foot mark on Perkins tide-gage U. S. C. & G. S. 

 at northwest corner of Market 

 square basin. 



Do. . .Wood's gage at northwest corner U. S. C. & G. S. 



of Market square basin. 



Do. . .B. M. on doorsill at No. 2 Market | U. S. C. & G. S... 



square. 



Do . . *.B. M. on granite block supporting U. S. C. & G. S. . . 

 iron fence around governor's ' 

 house. 



Do . . . B. M. on doorsill of church on West U. S. C. & G. S. . . 

 street, opposite market. 



Do Weather Bureau. . 



Annapolis Junction , B. & O. R. R 



Anthony ville U. S. G. S 



Aquasco U. S. G. S 



Arlington W. M. R. R..... 



Avalon B. & O. R. R . . . . 



Avondale W. M. R. R 



Bachman Valley Grove W. M. R. R 



Bacon Hill, copper bolt in coping of box cul- P., B. & W. R. R. 

 vert. 



Baldwin B. & O. R. R 



Baltimore, Pennsylvania avenue station P. R. R 



Do . . .copper bolt in bridge seat of Pat- P. R. R 



terson Park avenue bridge. 

 Do. . .Union R. R. tunnel: 



B.M. at north end P. R. R... 



B. M. at south end P. R. R 



Do. . .copper bolt in east pier of Saint P. R. R 

 Paul street bridge. 



Do . . .Mount Royal avenue station B. & O. R. R 



Do... Gay street B. & O. R. R 



