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location of “high" and of "low" areas and the barometer readings at their centers; wind and weather forecasts for Atlantic and Gulf of Mexico offshore areas; storm warnings for these areas; and flying weather forecasts for each of six aviation zones.

The weather reports contained in the bulletins and supplemented by others picked up from vessels can be used in the production of weather maps, which will be of much value to navigating officers; and charts prepared for this purpose, which show the reporting station and their key letters, will be forwarded upon application to the United States Weather Bureau.

Hurricane warnings when issued are repeated at 2-hour intervals for 24 hours.

Complete details relative to the above service, including method of decoding the major bulletins and a list of stations from which localized broadcasts are made, are published in Circular No. 13, issued

nited States Weather Bureau. Copies of this circular and a card descriptive of storm signals may be obtained without charge upon application to any United States Weather Bureau office on the Atlantic coast. A new edition of the Radio Weather Code for Vessel Weather Observers (W. B. 860) was published in 1925.

Free medical advice to seamen by radio.—The Seamen's Church Institute, of New York, announces that, through the cooperation of the Seamen's Church Institute with the United States Public Health Service, free medical advice for ships at sea is now available through the coastal radio stations operated on the Atlantic and Pacific coasts of the United States.

The marine hospitals and relief stations of the United States Public Health Service designated to furnish the service in question are as follows: Atlantic coast :

New York, N. Y., United States Marine Hospital No. 70. (Alternate.)
Stapleton, N. Y., United States Marine Hospital No. 21.

Key West, Fla., United States Marine Hospital No. 10.
Gulf coast: New Orleans, La., United States Marine Hospital No. 14.

While the Panama Canal was not included in the original scheme, several requests for medical service have been received here from ships at sea and have been given prompt attention.

Ships desiring medical advice can secure prompt service by sending radiograms through any radio station with which communication is established, such radiograms to be signed by the master addressed to the nearest marine hospital or relief station and briefly stating symptoms of the person afflicted. The advice given by the above-mentioned hospitals will be phrased in language (English) intelligible to a layman. This free medical service has been established primarily for the benefit of ships not carrying physicians. However, should occasion require, consultation may be held by radio by ships' physicians with the hospital staffs.

The United Fruit Co, announces that the free medical-radio service, which it inaugurated on August 1, 1922, from its hospitals in the various countries of Central America and from the passenger ships in its service, is now made available for ships at sea through an additional number of stations. The following is a list of radio stations of the United Fruit Co. and of the Tropical Radio Telegraph Co. through which this service may hereafter be obtained without charge, so far as these companies are concerned, by ships of all nationalities :

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Free medical radio service is also available through the Tela Railroad Co.'s radio station, call letters UC, Tela, Honduras, and through the Truxillo Railroad Co.'s radio station, call letters UA, Puerto Castilla, Honduras. Both of these stations may be reached through any station of the United Fruit Co. or of the Tropical Radio Telegraph Co. listed above.

The following information is taken from a circular issued by the United Fruit Co.:

Radiograms requesting medical advice should be signed by the captain of the ship and should state briefly but clearly the symptoms of the person afflicted. Such radiograms, if intended for a United Fruit Co, hospital, should be addressed “Unifruitco," followed by the name of the place where the hospital is located. United Fruit Co. hospitals giving this service are located at the following places and also may be reached through any of the above-mentioned radio stations : Santa Maria, Colombia ; Puerto Limon, Costa Rica ; Almirante, Panama; and Puerto Barrios, Guatemala.

This service may also be obtained at the hospital of the Tela Railroad Co., Tela, Honduras, and at the hospital of the Truxillo Railroad Co., Puerto Castilla, Honduras. Radiograms for these hospitals should be addressed “ Telarailco ” and “ Trurailco," respectively.

All United Fruit Co. passenger steamships carry doctors and free medical advice may be secured by radio from any of them by a radiogram addressed “ Ship’s Doctor,” followed by name of the steamship. This free medical service is established primarily for the benefit of ships not carrying doctors; however, should occasion require, ships' doctors may hold consultation by radio with the United Fruit Co. ships' doctors and hospital staffs.

The physicians and surgeons comprising the medical staff of the United Fruit Co. and its associated companies are thoroughly qualified, but in view of the fact that radio medical advice to ships at sea is given free and without an opportunity for a personal examination of the patients, no responsibility will be assumed by either the company and its associated companies or the physicians or surgeons giving the advice as to its accuracy, or for error or delay in the receipt or transmission of any message sent or received in connection therewith.

It is requested that when sending medical-advice radiograms, radio operators check them “(number of words) DH Medico.” DH Medico” radiograms will be given preference over all other radiograms, excepting SOS calls, throughout the radio service of the United Fruit Co. and Tropical Radio Telegraph Co.


Coast Guard stations are maintained at the places named in the table following. The stations are fully manned throughout the year and are supplied with boats, wreck guns, beach apparatus, and all other appliances for affording assistance in case of shipwreck. Instructions to enable mariners to avail themselves fully of the assistance thus afforded will be found in the appendix, page 314.

The Coast Guard stations are provided with the International Code Signals and are prepared to send or receive signals in hat code or by means of the Semaphore Code, the Occulting or Flashinglight Code, or the International Morse Wigwag Code. Telephone facilities are available at the stations for the summoning of Coast Guard cutters, tugs, or other assistance, or for communicating with telegraph lines.

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Cape cod to the St. Croix River

Official designation 1


Name and locality

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Quoddy Head, near West Quoddy Head Light.
Cross Ísland, Machias Bay.
Great Wass Ísland, off Jonesport.
Cranberry Island, off Mount Desert.
Whitehead, on southwest end of Whitehead Island.
Burnt Island, off mouth of St. George River.
Damiscove Island, Damiscove Harbor.
Kennebec River, on west side mouth of Kennebec

Cape Elizabeth, near the light.
Fletchers Neck, Biddeford Pool.
Portsmouth Harbor, on Wood Island.
Wallis Sands.
Isles of Shoals, Appledore Island.
Rye Beach, north end.
Hampton Beach, 192 miles north of Great Boars

Salisbury Beach, 23 mile south of State line.
Merrimac River, north end of Plum Island.
Plum Island, 244 miles from south end.
Straitsmouth, 72 mile west of Straitsmouth Light.
Gloucester, westerly side of Gloucester Harbor.
Nahant, on Nahant Neck.
City Point, floating station in Dorchester Bay.
Point Allerton, 1 mile west of Point Allerton.
North Scituate, 272 miles south of Minot Ledge

Brant Rock, on Green Harbor Point.
Gurnet, 492 miles northeast of Plymouth.
Manomet Point, 62 miles southeast of Plymouth.
Wood End, 18 mile east of Wood End Light.
Race Point, 138 miles northeast of Race Point


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The following life-saving stations, maintained by the Massachusetts Humane Society, are not manned, but depend on local residents to render assistance with the equipment given under the column headed “ Remarks":

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Lifeboat. Emerson Point, Cape Ann.

Dory. Brace Cove, Gloucester..

Lifeboat, Hunt gun, and apparatus. Marblehead.--.

Power lifeboat, lifeboat, Hunt gun, and

apparatus. Deer Island, Boston Harbor -

Lifeboat. Boston Light--

Hunt gun and apparatus. Nantasket Beach (between Point Al- Large lifeboat and small boat.

lerton and Strawberry Hill). Nantasket Beach, Surfside-

Lifeboat and dory, Hunt gun, and

apparatus. The Glades, North Scituate.

Lifeboat, Hunt gun, and apparatus. Scituate Light-

Lifeboat. Scituate..

Hunt gun and apparatus. Bass Cove, Scituate..

Large and small lifeboat. Third Cliff..

Lifeboat, Hunt gun, and apparatus. Race Point Light

Hunt gun and apparatus.


The magnetic variation for 1927 and annual increase at points mentioned are as follows:

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Tide Tables for the Atlantic Coast of the United States, including Canada and the West Indies, are published annually in advance by the United States Coast and Geodetic Survey. This volume fur

nishes, at the nominal cost of 15 cents, full tidal data for the Atlantic and Gulf coasts of North America.

It contains a table of full daily predictions of the times and heights of high and low waters for certain standard or principal ports along the coast, with full explanations for the use of this table. The use of Table 2 of the Tide Tables should be known to every navigator. By means of this table the predictions given for the standard ports are extended so as to enable one to obtain the predictions for each day for a large number of other stations and with almost the same accuracy as though full predictions were given for all these points.

The effect of strong winds, in combination with the regular tidal action, may at times cause the water to fall below the plane of reference of the chart, mean low water. The water may also rise about the same amount above mean high water, due to similar causes.

Caution.-In using the Tide Tables, slack water should not be confounded with high or low water. For ocean stations there is usually but little difference between the time of high or low water and the beginning of ebb or flood current; but for places in narrow channels, landlocked harbors, or on tidal rivers the time of slack current may differ by two or three hours from the time of high or low water stand, and local knowledge is required to enable one to make the proper allowances for this delay in the condition of tidal currents. To obtain the times of slack water, reference should be made either to figures given for various places in this volume of the Coast Pilot or to the Current Tables.

Current Tables for the Atlantic Coast of the United States are published in advance annually by the United States Coast and Geodetic Survey. This volume, which sells for 10 cents per copy, includes the daily predicted times of slack water for certain standard stations and a table of current differences and constants by means of which the daily predicted times of slack water may be readily obtained for numerous other places. These tables also include current diagrams for six bodies of water along the coast which show in a graphical form the velocities of the flood and ebb currents and the times of slack and strength over a considerable stretch of the channel of these waterways.

The results of detailed tidal and current observations in Portsmouth and Boston Harbors are being compiled, and will be published under the following titles: “Tides and Currents in Portsmouth Harbor and Tides and Currents in Boston Harbor." Copies of these publications may be obtained from the Coast and Geodetic Survey Field Station, Boston, Mass., or from the Superintendent of Documents, Government Printing Office, Washington, D. C., at a nominal cost.

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The following data about the inland waterways are included for ready reference:

The inland waters extending eastward from New York include Long Island Sound, Narragansett Bay, Buzzards Bay, and Vineyard and Nantaucket Sounds. From the head of Buzzards Bay there is an available passage through Cape Cod Canal (see p. 299), from which the passage to the New England coast must be made mostly outside, although there are harbors at short intervals.

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