Contains only air of 75 lbs. pressure in refrigerating pipes. At about 30 degrees below zero when seawater is at 90 degrees. More than two hundred in use on U. S. Naval vessels. Some since 1888. H. B. ROELKER, 41 Maiden Lane, New York THE NAVY LEAGUE OF THE UNITED STATES Has been doing its part to help the Navy JOIN THE NAVY LEAGUE AND HELP US WITH OUR TASK SEA POWER THE NATION'S DEFENSE The League's Official Organ WILL KEEP YOU IN TOUCH WITH OUR WORK 1201 SIXTEENTH STREET, WASHINGTON, D. C. TEAR OFF AND MAIL THIS COUPON APPLICATION FOR MEMBERSHIP IN THE NAVY LEAGUE OF THE UNITED STATES Of the membership fee $1.75 is for a year's subscription to SEA POWER. Subscription to SEA POWER without membership, $3.50. Contributing Member... Life Member....... DUES: $5.00 annually .... 100.00 one payment "SEA POWER," a beautifully illustrated magazine, is sent monthly to all members. TO THE NAVY LEAGUE, 1201 Sixteenth Street, Washington, D. C. rolled as a.... I am in sympathy with the objects of the Navy League and desire to be en. ..member. I enclose $..... ...for fee (Indicate class of membership) $1.75 of which is for a year's subscription to SEA POWER. N. I. 517 (Name) (Address) Please mention the PROCEEDINGS when writing advertisers of the United States Artillery FOUNDED 1892 Published monthly at Fort Monroe, Virginia, under supervision of the Coast Artillery Training Center Staff, by direction of the Chief of Coast Artillery. 12 numbers per year; volumes begin January and July. Issued on 15th day of each month. Each number contains approximately 100 pages of information valuable to the Artilleryman, and to civilians interested in the development of Heavy Artillery and Coast Defense. There are: 1. Original articles, translations, and reprints. 2. An Editorial Review. 3. Professional Notes. 4. Book Reviews, including an Index to Current Artillery Literature. LIAISON Published every week at Fort Monroe, Va., in connection with the JOURNAL OF THE U. S. ARTILLERY. The LIAISON contains: (1) Items of current interest to Artillerymen. (2) Discussions of problems affecting the service of artillery. (3) Historical articles on artillery. (4) Bibliography and critical review of new publications of professional interest. (5) Reports of meetings and activities of the Corps. (6) News items concerning members of the Corps, past and present. BOOK DEPARTMENT The subscribers of the JOURNAL and LIAISON are invited to make the BOOK DEPARTMENT of the JOURNAL U. S. ARTILLERY & medium for obtaining such books and magazines as are desired. |