118 Report of the Board of Shell Fish Commissioners 



This line, indicating the limit of the oyster-producing bottom, 

 does not mark the official limits of the oyster ground, but it 

 serves as a guide for enclosing the ground within a straight- . 

 sided figure (see figure 6) such as is designated shall be used 

 to define the limits of the natural bars by Section 90 of the 

 Haman Oyster Culture Law. 



FIELD WORK. 



The hydrographic survey of the oyster grounds beneath the 

 waters of Maryland was begun in Anne Arundel County on the 

 29th of June, 1906. The time previous to this date, from the 

 appointment of the Commission, was occupied with getting 

 together a -survey party and an equipment for carrying on the 

 survey work. 



Survey operations were carried on until September 12th from 

 Annapolis, in Severn Kiver, Annapolis Roads and nearby sec- 

 tions of the Bay. , On September 12th the houseboat Oyster 

 was put into commission and she has since been headquarters 

 for all field work. 30 Her anchorages have been as follows : 



Galesville, West River September 13 to November 4. 



Annapolis November 4 to November 8. 



Revell, Magothy River November 8 to November 30. 



Lake Shore, Bodkin Creek November 30 to December 10. 



Annapolis December 10 to May 2 (1907). 



Crisfield May 2 to July 13. 



Inverness, Manokin River July 13 to August 27. 



Inverness, Piney Island \. August 27 to August 30. 



Mt. Vernon, Wicomico River August 30 to September 30. 



The work carried on by the survey party, classified under 

 various headings, during each month from the date of begin- 

 ning field work until the end of the fiscal year, September 30, 

 1907, is given in the tables printed on pages 119 and 120. 



sFrom December 10, 1906, to May 2, 1907, the survey party, with the 

 exception of the engineers and two laborers, was disbanded and the 

 . work of duplicating records and preparing leasing charts was carried 

 on in the office in the State House. 



