12 SUMMARY OF SURVEY OF OYSTER BARS OF MARYLAND. 



the "Progress maps" in the series of the 12 county publications of Survey of Oyster 

 Bars of Maryland. 1 On a much snaller scale they are represented as a whole on the 

 "Index Chart" in the folder of this publication. 



Statistically, the results are also described in various tables both in the publi- 

 cations of the Maryland Shell Fish Commission (XLHI, pp. 39-47, 102-103, 114-117, 

 126-127, 132, 145-149, 182-183, 189, 195-199, 206-210, 225-228, 239-241, 246, 

 321-322, 336-339) 1 and the United States Coast and Geodetic Survey (XVIII, pp. 

 18-19; XX, p. 15; XXII, p. 16; XXVI, p. 16; XXVIII, pp. 22-23; XXX, 

 p. 14; XXXII, p. 14: XXXIX, p. 18; XL, p. 21; XLIV, p. 25; XLVI, pp. 23, 

 180). 1 But as these tables are too separated for the purposes of a summary view, 

 their principle features will be given in groups of statistics arranged in accordance 

 with the class of the results it is desired to present. 



STATISTICS OP RESULTS PERTAINING TO SHELLFISH BOTTOMS RESERVED FOR PUBLIC USE. 



Acres. 



Natural oyster bars surveyed, technically defined, and reserved for the use of the public 215, 845 



Crab bottoms surveyed, technically defined, and reserved for the use of the public 43, 991 



Clam beds surveyed, technically defined, and reserved for the use of the public 506 



STATISTICS OF RESULTS PERTAINING TO OYSTER BOTTOMS SUITABLE FOR OYSTER CULTURE. 



Undeveloped, but known productive oyster culture bottoms owned by the State and subject to Acres. 



lease under the terms of the Haman Oyster Culture Law 100, 000 



Undeveloped, but estimated as being potentially productive oyster culture bottoms owned by the 



the State and subject to lease under the terms of the Haman Oyster Culture Law 200, 000 



"Barren bottoms" of doubtful value for the growth of oysters, although in waters sufficiently salt 



for the purpose and subject to lease under the terms of the Haman Oyster Culture Law 460, 000 



STATISTICS OF RESULTS PERTAINING TO SURVEYING DATA USEFUL FOR SURVEY OPERATIONS OTHER THAN 



OYSTER SURVEYS. 



Triangulation stations based on the standard datum of the United States Coast and Geodetic 



Survey 1,112 



Miles of shore line covered by triangulation 1, 340 



Square miles of water covered by triangulation 1, 600 



Square miles of land controlled by triangulation 1, 200 



Miles of soundings 2 3, 060 



Soundings 2 159, 530 



Square miles of water covered by soundings 2 480 



Tide stations established 2 30 



OTHER STATISTICS OF FIELD WORK INDICATING THE STANDARD OF THE SURVEYING OPERATIONS ON WHICH 



THE RESULTS ARE BASED. 



Oyster investigation stations occupied for examination of bottoms and other data 11, 006 



Miles of examination of shell bottoms with chain apparatus 3, 060 



Triangulation stations occupied 1, 050 



Boundary buoys located and anchored 2, 964 



Monuments planted to mark triangulation stations 1, 000 



Sextant angles observed on sounding lines 62, 600 



1 See " References," p. 19. 



J This part of the work was done under the immediate direction of Swepson Earle, Hydrographic Engineer of the Maryland 

 Shell Fish Commission. 



