22, 



ably lower thau in the neighboring bodies of water at the time 

 when determinations were made, in March and May, 1907. 



Just west of Dog Lake, separated by a very narrow strip 

 cf marsh, there is a long, narrow bay {Bay Bucconi f) which 

 communicates with Dog Lake on tlie north side. The pass to 

 Dog Lake has a depth of six feet in the channel. Over the re- 

 mainder of the bay the depth of the water is about three feet. 

 The bottom is geneirally soft, and no reefs were found, either 

 living or extinct. 



In the marsh between Grand Pass des Isles and Bayou 

 Grand Caillou, to the west of Dog Lake, there are several small 

 bays and bayous. Most of the bayous are narrow and deep 

 throughout their entire length. The bays are all very shallow, 

 none of them being more than from two and one-half to four 

 feet deep. There are many reefs of small coon oysters in these 

 bays and along the banks of the bayous, but none of the oysters 

 are large enough to be used except for seed. 



The salinity of the water in these places is about the same 

 as in Grand Pass des Isles, and the supply of food materials 

 is especially abundant in many of the bays. 



Charlie's Bay, southeast of Dog Lake, with which it com- 

 municates by several passes, is about two and one-half miles 

 long and one mile wide. The whole bay is very shallow, from 

 two to four feet deep, and the bottom is composed of soft mud 

 except for some relatively small hard areas where there has 

 apparently been oyster reefs. There are scattered bunches of 

 coon oysters along the banks and some unimportant reefs out in 

 the bay. The salinitj^ of the water at the only time that this 

 bay Avas visited, in May, 1907, was 1.014, the amount of oyster 

 food in the water was large. 



About one and one-half miles from its mouth. Grand Pass 

 des Isles is joined by a bayou that is known among the oyster 

 men as Bayou Go to Hell. This last named bayou has its source 

 near Bay Des Mangles, some ten miles farther to the- eastward, 

 and runs through the marsh in an east and west direction parallel 

 to the coast line. About one mile from its mouth- it gives off 

 a branch that runs to the northeast corner of Pelican Lake. 

 Some two miles farther to the eastward it divides into two 

 branches. One of these runs in a northerly direction and 



