40 



the north side of the spit, were by no means confined to that 

 side, but scattered over the whole spit. 



5. At several places south of this islet a very few clams 

 were found in small clusters, but at no place was there any large 

 bed. Tlie spots are indicated on the chart, and, very probably, 

 these places could be made more productive by artificial means. 

 No estimate wns made of these points, but they would probably 

 equal bed No. 4 in area. 



6. IMention has already been made of the flat near the 

 New Harbor Island. Along the Avestern shore of the largest 

 of these islets, the bottom is an extremely soft mud. About 

 ten yards from shore this becomes firmer and is more or less 

 evenly covered with short, fine grass. Here clams are very 

 abundant the entire length of the islet, extending out into four 

 or five feet of water (at low tide) with very little diminution 

 in num.bers. These clams are nearly all of a uniform size (two 

 and a half inches long) and cover about sixty to seventy acres. 



7. Attention has been called to the large clam bank shown 

 on the chart a short distance from the north point of North 

 Harbor Island. Several careful attempts were made to locate 

 this bank at different times, but all failed to show any indi- 

 cations of it. Instead of finding a shoal bank covered with 

 from two to five feet of water all our sounding at this point 

 gave a depth of from six to ten feet. On the shore abundant 

 evidence is present, in the piles of dead shells, to indicate that 

 a bed had been located here at some time in the past. It is very 

 likely that the bed Mms washed away by some heavy storm. 

 All these shells, however, were very badly weathered, and had 

 evidently been on the beach for some time. 



8. At the southwestern end of this group the tonocrraphy 

 has chansred slightly since the survey was made. At present 

 the terminal islet is separated from the rest of the chain by a 

 channel about a mile wide, instead of being continuous Avith 

 the ad.iacent island, as shown in the chart. Below the lower 

 end of this islet a broad fiat extends for over a mile. The water 

 deepens very gradually, and the three-foot line is about a mile 

 from the island. The bottom is a rather hard, dark sand, 

 covered with irregular grassy patches, while a few are found 



