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68 CE: Vespasian, on a visit to the Dead Sea, demonstrates its famed buoyancy. He orders some non-swimmers to be thrown into deep water with their hands tied behind their back; all rise to the surface and float. Other remarkable properties of the Dead Sea are also described, such as the changing color of its water and its bituminous mud, so sticky that it can only be removed from the hulls of boats with women's monthly secretions. Use of this illustration of swans a-swimming is evidently an allusion to the buoyancy of the water.

Coupe du Mokkias, à la pointe de l'Isle de Rodda, au Vieux Caire. (a. Colonne, dont les differentes mesures marquent combien le Nil hausse et baisse, b. Entrées et sorties des eaux, c. Architrave sur la dite colonne, d. Galerie, f. Niches, i. Surface du Nil.)

Stripping off the surface dirt covering the Morris open pit mine, Mesabi Range, Minn. U.S.A.

The new air compressors which furnish power to drive the drills, about 500 feet below the surface of the earth.

The new air compressors which furnish power to drive the drills, about 500 feet below the surface of the earth.

Surface of ore dock, Two Harbors, Minn. U.S.A.

The new air compressors which furnish power to drive the drills, about 500 feet below the surface of the earth.

West end from the original surface standpoint, looking north-east.

Stripping off the surface dirt covering the Morris open pit mine, Mesabi Range, Minn. U.S.A.

Surface of ore dock, Two Harbors, Minn. U.S.A.

West end from the original surface standpoint, looking north-east.

The new air compressors which furnish power to drive the drills, about 500 feet below the surface of the earth.

1. Pana halecina, Spotted Frog, b. under surface of head, c. under surface of left fore foot, d. under surface of left hind foot; 2. Rana boylii, Boyl's Frog (California), a. b. lateral and under views, c. d. as in preceding,; 3. Rana boylii, Boyl's Frog, young. b. c. as c. and d. in preceding; 4. Rana septentrionalis, Northern Frog (Fort Ripley, Minnesota). a. b. etc., as in preceding; 5. Rana catesbiana, Catesby's Frog. References as in Fig. 2.

Plate 11. Dr. Van Buren’s case of acute osteo-myelitis, in a girl eleven years old. Outer surface of specimen. Successful amputation at [knee]-joint. Case 49.

One of the group of Pagosa Hot Springs, showing incrustation on the surface. Much prized by the Indians and miners on account of supposed healing qualities. Principal mineral element, Sulphate of Soda.

One of the group of Pagosa Hot Springs, showing incrustation on the surface. Much prized by the Indians and miners on account of supposed healing qualities. Principal mineral element, Sulphate of Soda.

One of the group of Pagosa Hot Springs, showing incrustation on the surface. Much prized by the Indians and miners on account of supposed healing qualities. Principal mineral element, Sulphate of Soda.

One of the group of Pagosa Hot Springs, showing incrustation on the surface. Much prized by the Indians and miners on account of supposed healing qualities. Principal mineral element, Sulphate of Soda.

One of the group of Pagosa Hot Springs, showing incrustation on the surface. Much prized by the Indians and miners on account of supposed healing qualities. Principal mineral element, Sulphate of Soda.

One of the group of Pagosa Hot Springs, showing incrustation on the surface. Much prized by the Indians and miners on account of supposed healing qualities. Principal mineral element, Sulphate of Soda.

One of the group of Pagosa Hot Springs, showing incrustation on the surface. Much prized by the Indians and miners on account of supposed healing qualities. Principal mineral element, Sulphate of Soda.

One of the group of Pagosa Hot Springs, showing incrustation on the surface. Much prized by the Indians and miners on account of supposed healing qualities. Principal mineral element, Sulphate of Soda.

A threshing-floor. Peasants winnowing grain with large wooden forks, and a team dragging a sledge, the under surface of which is armed with sharp flints, to cut up the straw

Jacob's Well, at the foot of Mount Gerizim. The true mouth of the well is in the floor of a little vaulted chamber below the surface of the ground

The cliffs of Engedi. They form an very difficult pass, and the zigzag paths are not kept in repair. The surface of the limestone rock is of marble-like smoothness, and a pale reddish tint is the prevailing color.

[Construction of the skeleton and plaster surface of the left arm and hand of the Statue of Liberty.]

Frank E. Downs. Trip to Nome, Alaska, May to Sept. 1900: Frank's camp; "Gopher" beach - beach washed rough by miners; Cemetery near Nome. See cross on horizon. Ice 10 inches below surface in summer; Sod houses near edge of tundra.

Frank E. Downs. Trip to Nome, Alaska, May to Sept. 1900: Cemetery at Nome. Two men digging grave. Found ice at 10 inches below surface; Anvil Rock, from which Anvil Creek was named. The Anvil is perhaps 20 ft. high, 15 ft. wide, 30 ft. long; Near Discovery Claim, looking south-west. Placer Claim, No. 1, Anvil Creek, 6 miles from Nome. Where gold was first discovered. Rich Claim, noted.

Dark Cañon; "German Carp" in Rheinboldt's Lake, thousands of fish in solid mass, from surface to bottom, swimming at end and side of boat; "A thorn" etc.; Geyser Springs Ranch.

Section of subway at Pearl Street, surface railway tracks supported over excavation on upper Broadway.

Small water mains between street surface and subway roof, substituted for one large main - 125th Street and Lenox Avenue; special construction of 6 1/2 foot sewer, under Chatham Square.

Mine of clay, near the surface, St. Louis, Missouri.

Mine of clay, near the surface, St. Louis, Missouri.

Out-cropping of coal veins near earth's surface along the banks of a stream, Scranton, Pa., U.S.A.

Out-cropping of coal veins near earth's surface along the banks of a stream, Scranton, Pa., U.S.A.

TheHeart of New York: Grand Central Terminal: Only Railway Station on the Subway, Elevated, and Surface Lines.

Making the roads. The roads will be dirt roads with 18 foot gravel surface. Bosque Farms Project.

Making the roads. The roads will be dirt roads with 18 foot gravel surface. Bosque Farms Project.

23rd Street Surface Car, West 23rd Street, Manhattan.

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