824 
BULLETIN OF THE BUREAU OF FISHERIES 
Date 
General locality 
Station 
Color in 
percent- 
age of 
yellow 
1912 
July 10 
Off Gloucester _ _ ... 
10002 
20 
11 
Near Gloucester _ - 
10004 
20 
13 
Off Boston Harbor. . 
10006 
20 
15 
Basin off Cape Ann 
10007 
14 
16 
Ipswich Bav _. __ 
10008 
20 
16 
Northeast of Cape Ann 
10009 
14 
16 
Off Hampton, New Hampshire 
10010 
20 
17 
Near Isles of Shoals . 
10011 
20 
24 
Off Kennebunkport 
10013 
27 
24 
10014 
27 
25 
Casco Bay _ . 
10015 
27 
26 
Near Seguin Island . . 
10016 
27 
27 
Casco Bav 
10017 
35 
27 
Orrs Island ... 
44 
29 
Off Casco Bav 
10019 
20 
Aug. 2 
Off Monhegan Island . 
10021 
27 
3 
Penobscot Bav 
10021a 
27 
7 
Off Cape Elizabeth 
10022 
27 
7 
Platts Bank. 
10023 
14 
8 
Offing of Penobscot Bay . . 
10025 
20 
8 
Off Matinicus Island 
10026 
20 
8 
Near Seguin Island . 
10026a 
20 
14 
Basin South of Mount Desert 
10027 
20 
14 
Basin, east side 
10028 
20 
14 
German Bank . 
10029 
20 
15 
Off Lurcher Shoal 
10031 
24 
16 
Off Mount Desert Rock .. 
10032 
24 
16 
Off Machias, Me . 
10033 
35 
19 
West end, Grand Manan Channel . ...... 
10035 
20 
20 
Offing of Machias, Me .. ... . 
10036 
20 
21 
Near Mount Desert Island . .. 
10037 
35 
21 
Off Isle au Haut 
10038 
20 
1913 
July 8 
Off Northern Cape Cod . ... 
10057 
27 
8 
Southwestern part of basin... ... .. . 
10058 
9 
9 
West side of Georges Bank ... .. 
10059 
20 
9 
Offing of Nantucket Shoals 
100C0 
5 
10 
Continental edge, off Nantucket Shoals . .. 
10061 
2 
Aug. 4 
Off Chatham, Cape Cod .. 
10085 
27 
5 
Off northern Cape Cod ... ..... ... ... 
10086 
27 
9 
Off Gloucester ... .. _ ... 
10087 
14 
10 
Center of basin 
10090 
9 
11 
Offing of Penobscot Bay 
10091 
20 
11 
East side of basin ... . 
10092 
9 
12 
do ..... . .. 
10094 
27 
12 
German Bank - 
10095 
27 
12 
Off Lurcher Shoal 
10096 
20 
13 
Off Machias, Me... 
10098 
20 
13 
Near Mount Desert Island 
10099 
27 
13 
Near Mount Desert Rock 
10100 
27 
14 
Offing of Penobscot Bay ... 
10101 
35 
14 
do ... _ 
10102 
20 
15 
Near Isles of Shoals 
10104 
20 
15 
Offing of Ipswiteb Bay 
10105 
20 
SOURCES FROM WHICH THE GULF OF MAINE RECEIVES ITS 
WATERS 
In few parts of the world is the coast water that bathes the continental shelf as 
sharply demarked from the oceanic water outside the edge of the continent as it is 
off the east coast of North America, from the Grand Banks on the north to Cape 
Hatteras on the south. Not only is the former much colder and much less saline 
than the latter, but the transition from the one type to the other is often remarkably 
abrupt. To see the warm sapphire blue of the so-called “Gulf Stream ” give place 
to the cold bottle-green water over the banks is a familiar spectacle to mariners 
sailing in from sea. While it is unusual to meet as abrupt a transition as Smith (1923, 
pi. 5) describes for one occasion (March 27, 1922) south of the Grand Banks, where 
