52 



TIDES AND BENCH MARKS 



east of the Navy Yard, and a fixed tide staff was secured to the north side of 

 the gauge house (Plate XV, Fig. 1). Mr. W. C. Townsend, an employee of the 

 Colonial Hotel, was engaged as tide observer, and proved to be a faithful and 

 careful man, so that the first year of records, which are now available, are quite 

 satisfactory. The preceding sketch shows the location of the tide gauge and 

 bench marks. 



DESCRIPTION OF BENCH MARKS. 



The three following bench marks were established by Dr. Fassig and con- 

 nected by spirit levels with the fixed tide staff : 



Bench Marh No. 1 (Plate XV, Pig. 3) is the raised horizontal line of a 

 circular bronze tablet, about 3 inches in diameter, and 10 inches above the 

 ground, which is set in the side of a granite post, in the grounds of the Colonial 

 Hotel, about 225 feet southeast from the tide gauge and 100 feet north of the 

 eastern wing of the hotel. The stone projects about 30 inches out of the 

 ground, the upper portion being dressed to about 13 x 18 inches. The base 

 is cemented into a socket cut in the solid coral rock and surrounded by blocks 

 of limestone set in portland cement. On the top of the stone is a bronze plate 

 bearing the following inscription : 



THIS BENCH MAEK WAS ESTABLISHED BY THE 



BAHAMA EXPEDITION OF THE GEOGBAPHICAI, SOCIETY 



OF BALTIMORE 



IN CO-OPEEATION WITH THE 



UNITED STATES COAST AND GEODETIC STJBVEY 



AND BY TH& COURTESY OF THE 



GOVERNMENT OF THE BAHAMA ISLANDS 



IN THE YEAR OF OUR LORD 1903 



SIR GILBERT THOMAS CARTER 



GOVERNOR BAHAMA ISLANDS 



DANIEL COIT OILMAN 



PRESIDENT GEOGRAPHICAL SOCIETY OF BALTIMORE 



OTTO HILGARD TITTMANN 



SUPERINTENDENT UNITED STATES COAST AND GEODETIC SURVEY 



GEORGE BURBANK SHATTUCK 



DIRECTOR BAHAMA EXPEDITION 



On June 26, 1903, Dr. 0. L. Passig found by spirit levels that Bench Mark 

 No. 1 was 10.508 feet above zero of the fixed tide staff. 



Bench Marh No. 2 is the raised horizontal line of a circular bronze tablet 

 about 3 inches in diameter, which is cemented into the north stone wall of the 

 Flagler Cottage, about 4 feet from the ground. This is a very old building and 

 not likely to settle. On June 36, 1903, Bench Mark No. 2 was found by 

 spirit levels to be 14.108 feet above zero of the fixed tide staff. 



Bench Marh No. S is the raised horizontal line of a circular bronze tablet. 



