OCEAN TEMPEEATDEES. 163 



Body's IslancI light-house. — LQcated Dear the southern eucl of Body's Island, about 35 miles north of Cape Hatteras, 

 and 86 miles from Cape Lookout. The shore is similar in character to that at Cape Lookout, but the surface observa- 

 tions were taken where the depths are from 7 to 9 feet. The temperature curves for the surface and air are almost 

 precisely alike, and the observations cannot be regarded as of any value with respect to the open waters offshore. 



« VIRGINIA. 



Winter Quarter Shoal lightship. — Anchored in 10^ fathoms of water, 8J miles off Assateague Island, and about 

 midway between the entrances to Chesapeake Bay and Delaware Bay ; distant about 128 miles from Body's Island. 



NEW JERSEY. 



Five-Fathom Battle light-ship. — Anchored in 12 fathoms of water, about 14 mUes off the coast, just east of Cape Majf , 

 and off the entrance to Delaware Bay ; distant about 56 miles from Winter Quarter Shoal light-ship. 



Abseeon light-house.— hocaved on the beach in front of Atlantic City, and just south of the entrance to Absecon 

 Inlet ; 34J miles distant from Five Fathom Bank light-ship. The shore is faced with shoals, but the surface observa • 

 tlons were taken in the channel leading to the inlet, in deiJths of 9 to 15 feet of water. The surface records are much 

 more satisfactory than at either of the previous shore stations (Cape Lookout and Body's Island), and the surface 

 curves are nearly as regular as at Five Fathom Bank light-ship. 



NEW YORK. 



Sandy Hoolc light-ship. — Anchored in 14 fathoms of water off the entrance to New York Bay ; 6 miles east of Sa ndy 

 Hook, N. J., the nearest land ; and about 70 miles from Absecon light. 



Fire Island light-house.— Jjocated on the east side of Fire Island Inlet, south side of Long Island, 31 miles from 

 Sandy Hook light-ship. The surface observations were taken in the entrance to Great South Bay, between Fire 

 Island and Oak Island, in 3 feet of water. A strong current flows through the channel, which is somewhat similar in 

 character to the entrance to Absecon Inlet. 



RHODE ISLAND. 



Block Island southeast light-house. — Located at the southeastern corner of Block Island, 82 miles from Fire Island 

 light. The observations were taken at the lower edge of the beach, which faces the open sea to the south. The 

 surface temperature curves are comparatively regular and show less variation from local influences than would be 

 expected at a shore station of its character. 



Brenton's Beef light-ship.— ^ohoTed in 14J fathoms of water, off the entrance to Narragansfctt Bay, and about 1| 

 miles from land ; 17f miles distant from Block Island southeast light. 



MASSACHTJSETT.S. 



Vineyard Sound light-ship.— Anchoied in 15 fathoms of water, on the western side of the southern entrance to 

 Vineyard Sound, 2i miles from Cuttyhnnk Island, the nearest land, and 17^ miles from Brenton's Eeef light-ship. 



Nantucket Xew South Shoal light-ship.— Anchoied in 16 to 13 fathoms, at the southern edge of Nantucket shoals, 

 and 21 miles southeast of Nantucket Island, the nearest land ; distant about 58 miles from Vineyard Sound light-ship. 

 This station occupies a very important position with reference to the off-shore fisheries. 



Pollock Eip light-ship.— Anchoied in 5 to 7 fathomi? of water, in the eastern entrance to Nantucket Sound, and 3J 

 miles SE. by E. | E. from Monomoy Point light-house. Cape Cod ; distant about 36 miles from Nantucket New South 

 Shoal light-ship. This light-ship is mostly surrounded by numerous shoals which are separated by channels occupied 

 by strong tidal cuiTents. 



Xhatchet^s Island Zig&ts.— Located on Thatcher's Island, off the eastern extremity of Cape Ann, about 73 miles from 

 Pollock Eip light-ship. Depths of 60 fathoms occur within a distance of 6J miles to the eastward. The surface tem- 

 perature observations were taken where the water is 7 feet deep, and show variations from local influences. Obser- 

 vations were first made at this station by one of the light-house keepers, but after April, 1881, by an observer of the 

 U. S. Signal Service. 



MAINE. 



Boon Island light-house.— Boon Island is a small rocky island lying off York Harbor, and 54 miles from the nearest 

 jaud. It is distant about 35 miles from Thatcher's Island, and is surrounded by depths of 5 J to 25 fathoms within a 

 radius of 1 mile. The depth of water where the surface observations were taken is 9 feet. Many gaps occur in the 

 records of this station, and the reductions plotted on the chart are therefore probably not reliable. 



Seguin Island light-house.— Segnin Island is small and rocky, and is situated about 2^ miles off the nearest point 

 of the mainland, on the eastern side of the entrance to Kennebec River, and about 47 miles from Boon Island. The 

 light-house is on the western side of the island, where the water is from 6 to 8 fathoms deep close inshore at the 

 place of observation. 



MatinicM Bock light-house.— Ma.tiniona Eock is a rooky islet about 14 miles south of Viual Haven, at the mouth of 

 Penobscot Bay, and about 80 miles from Seguin Island. Depths of 4 to 45 fathoms occur within a radius of 1 mile, 

 the depth where the surface observations where taken ranging from 6 to 12 fathoms, 



Mount Desert Bock light-house.— Mount Desert Eock is similar in character to Matinicus Eock, and id situated 

 about 18 miles off Mount Desert Island and 34 miles from Matinicus Eock. Within a radius of 5 miles the depths 



