200 BULLETIN OF THE UNITED STATES FISH COMMISSION. 



if the season justifies it, Eobb will move up the river and fish Sandy Bai. 



The gill net fishermen in the Upper Potomac report a fairly good sea- 

 son on shad. The first catch of shad in the bay was early in March. 



I submit herewith a table showing the number of traps at different 

 points as far up as Indian Head, the places to which the catch is con- 

 signed, and the maximum and minimum temperatures of the air and water 

 at the different places visited. I find the fishermen, as a rule, call one 

 trap a net, no matter if there are several in a line, such as might be 

 called a single net of several traps. In this table it is the number of 

 traps given without respect to their location. 



In regard to a record of the temperatures at these places during the 

 fishing season, I can suggest no better observers than the light-keepers. 

 There is a light at every point where trap-nets are fished extensively, 

 and I believe the Commission already gets reports from most of them. 

 They do not, however, from Point Lookout, which I consider a most im- 

 portant station for such observations, putting out as it does into the 

 bay at the mouth of the Potomac. There is a new Government wharf 

 at this light, where such temperatures could be taken in deep water with- 

 out trouble. 



Arrived baclv in Washington on the evening of the 28th of April, and 

 secured at the navy -yard. 



Fish Hawk, 



Washington, B. C, April 30, 1884. 



Table, showing the places irliere fishing «'«8 prosecuted in the Potomac and Lower Chesa- 

 peaJce,in the spring of ISSi, the number of nets, places of consignment, and temperatures of 



peake, 



air and watei 



•a . 



p 



1884. 

 April 25 



26 



26 



27 

 28 

 28 

 28 



28 

 28 

 28 

 28 

 28 

 28 

 28 



Place of catch. 



Mobjack Bay 



York Spit and mouth of York 

 Elver. 



Mosquito Point to Windmill Point 

 Great Wicomico to Smith Point. . 



Ragced Point 



Lower Cedar Point 



Pope's ('reek to Nanjemoy Creek, 

 both sides of rivei'. 



Nanjemoy lieach : 



Chicanuison Creek 



Powell's Creek 



Mattaworaau Creek . . . ■. 



Deep Point 



Occoquan Cieek 



Indian Head 



a 



o 



<0 to 



S 



s 



1^5 



170 

 180 



29 



50 



7 



*11 



26 



3 

 3 

 1 

 1 



1 



18 

 o 



502 



Place of consignment 

 of catch. 



Baltimore and Phila- 

 delpliia. 



Baltimore, Philadel- 

 phia, New York, and 

 Richmond. 



Baltimore 



Baltimore 



Washington 



Temperatures. 



Air. 



Max. Min 



Washington , 



Washington . 

 Wasliington . 

 Wasliington . 

 W^aslungton 

 Washington , 

 Washington 

 Washington 



60 

 67 



67 

 67 



82 

 82 

 82 



82 

 82 

 82 

 82 

 82 

 82 



52 

 52 



53 

 53 

 56 

 56 

 50 



56 

 56 

 56 

 56 

 56 

 56 

 56 



Water. 



Max. Min 



56 

 56 



56 

 56 

 60 

 60 

 60 



60 

 60 

 60 

 60 

 60 

 60 

 60 



52 



52 



54 

 54 

 55 

 55 

 65 



55 

 55 

 55 

 55 

 55 

 55 

 55 



* Nine on Maryland side, two on Virginia side. 



