built of the intended dimensions. It does not contain one-third of the material required for the one now under consideration. This work, if ever undertaken, may, from like causes, linger on to completion through 75 or 100 years. The foregoing elements of uncertainty have been, as far as practicable, taken into account in determining the following estimate. It is also based on the supposition the breakwater is to be constructed of stone of suitable forms, sizes, and character, and in the general way like works have been in some cases heretofore. Limestone and granite are to be found within a few miles of Santa Cruz, and granite near Monterey. In the position given this work, the average depth at mean low water is 7 fathoms. For a running yard, lengthwise, we have 1,004.8 cubic yards of stone, if we suppose no voids. Considering these, and calling two thirds solid material, which will perhaps be fair, including what will be required for the ends, and for what may be scattered by storms during the necessarily long period of construction, we get 669.8 cubic yards, or, as one cubic yard will weigh about two tons, 1,339.6 tons for every yard in length. It is thought every ton in place will cost about $3 in coin, or $3.45 in legal tender. This would give, in the latter, $4,621.62 per running yard. A length of 2,300 yards would then cost $10,629,726. Should the auxiliary construction off Point Santa Cruz be made, it would require about 190,000 tons, or an additional expense of $655.500 in legal tender. The present necessities of commerce, to my mind, do not justify a like expenditure; therefore it is not believed anything can be expended profitably on this work during the next fiscal year. Santa Cruz is in the collection-district of San Francisco. That city is the nearest port of entry. The nearest port is that of Fort Point, at entrance to harbor of San Francisco. The nearest light-house is Santa Cruz light. The amount of commerce and navigation that would be benefited by the completion of the work is indeterminate. The amount of revenue collected at San Francisco during the last fiscal year is reported as $8,065,988.21. For statistical and other information I am indebted to the collector of the port of San Francisco, to Messrs. Davis and Nelson, and Captains Johnson and Hobun, in their employ. Respectfully submitted. Brig. Gen. A. A. HUMPHREYS, C. SEAFORTH STEWART, Chief of Engineers U. S. A., Washington, D. C. H. Ex. 84- -6 A resolution of the House of January 13, 1874, transmitting a report of the Surgeon General concerning the epidemic of yellow fever in the United States in 1873. JANUARY 27, 1874.-Referred to the Committee on Commerce and ordered to be printed. WAR DEPARTMENT, January 23, 1874. The Secretary of War has the honor to transmit to the House of Representatives, in compliance with resolution of the 13th instant, copies of such papers on file in the Surgeon General's Office concerning the epidemic of yellow fever in the United States in 1873, as illustrates the subject of national quarantine. WM. W. BELKNAP, SURGEON GENERAL'S OFFICE, GENERAL: I have the honor to forward here with copies of such reports, or parts of reports, received at this office during 1873, as bear upon the question of the importation of yellow fever, and its relation to the subjeet of quarantine. Cases of yellow fever were reported during the year at but two military posts, viz, Fort Jefferson, Tortugas, Florida, and Fort Barrancas, Pensacola Harbor, Florida. At Fort Jefferson, the first cases occurred during the month of August, the last during September; the last death during October. Altogether there were twenty-five cases and thirteen deaths out of a command which bumbered, at the time the fever appeared, but fifty-nine men, and which remained at the post during the epidemic. At Fort Barrancas the recognition of the first cases, September 26, was promptly followed by the removal of the majority of the command Month. Mean strength.. Yellow fever. Total Month to a camp on Santa Rosa Island, near Fort Pickens, three officers and twenty-six enlisted men being left behind. No new cases occurred in the portion of the command moved, but several of those left behind had the fever, making in all twelve cases and three deaths during September, October, and November, out of a mean strength of 119 men. After the appearance of yellow fever at Fort Jefferson, and the death of the commanding officer of the Pawnee in Key West Harbor, the garri son at Key West was removed, September 16, and encamped near old Fort Dallas, at the month of the Miami River, Florida. No cases occurred in this command. In like manner, after the occurrence of several cases among the citizens of Mobile, the garrison at that place was withdrawn, September 20, transferred to Mount Vernon Arsenal, and entirely escaped the disease. These results confirm the experience of former years in favor of the prompt removal of garrisons to healthy rural camp-sites on the appearance of yellow fever, either among the troops themselves or among the citizens in their immediate vicinity. I append herewith condensed abstracts of the monthly sick-reports of Forts Barrancas and Jefferson, from July to November, inclusive, in addition to the reports called for, which are given in full, with the excep tion only of those parts which refer to the treatment of the disease. I have the honor to be, very respectfully, J. J. WOODWARD, Assistant Surgeon United States Army. Surgeon-General J. K. BARNES. Fort Barrancas, Florida. Cases. Deaths. Cases. Deaths. |