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Scientific American, Vol. 22, No. 7 (February 1870) (1870)

leaf 4

An illustration from Scientific American, Vol. 22, No. 7 (February 1870), 1870, leaf 4
a perfect state, without any rs- covered with these fragments, the heat of the sun produced in 1871. The expense is equally shared by France and Italy. pairing whatever. At the present time the whole surface of decrepitation. The wagons wheels, by little and little, com- The exact length of the… … artificial concrete made of coal tar and gravel, or some in- Conservatoire, which is made out of cast asphalt, has never Paris from Seyssel peculiar description. The rock arrives at These lumps are in lumps containing several cubic inches, ferior abomination like that which now disgraces Fifth Ave-…

Patents · Antedated · Tunnel · Asphalt · Patent office · Oil · Spontaneous combustion · Snatch block · Cubic feet · Feet high · Patent fund · Steam engines · Fine patina · Horse hay · Oil globules

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