. The Civil engineer and architect's journal, scientific and railway gazette. Architecture; Civil engineering; Science. 102 THE CIVIL ENGINEER AND ARCHITECT'S JOURNAL. [Deoemeer, •' Sept. 12.—Mr. Bush again reported that he, accnmpanied by Lieu- tenant Batt, , in Her Majesty's cutter Sealarlc, matle a minute siuvey of the caisson after the gale, (of the Gtb instant,) and found that It had not tlie slightest effect upon it, and tliat it remained quite perpendicular alter having been subjeoled for many liours to the violence of the ; A small stage was washed oti', which was not of
. The Civil engineer and architect's journal, scientific and railway gazette. Architecture; Civil engineering; Science. 102 THE CIVIL ENGINEER AND ARCHITECT'S JOURNAL. [Deoemeer, •' Sept. 12.—Mr. Bush again reported that he, accnmpanied by Lieu- tenant Batt, , in Her Majesty's cutter Sealarlc, matle a minute siuvey of the caisson after the gale, (of the Gtb instant,) and found that It had not tlie slightest effect upon it, and tliat it remained quite perpendicular alter having been subjeoled for many liours to the violence of the ; A small stage was washed oti', which was not of any importance whatever; and the spar aud derrick. The part shown by the dotted line was also broken away. Fig. 2.—Section of Caisson. llcif^Hi^fffCaissoon. By a reference to our description in the Journal for October last, the annexed engraving, Fig. 2, will explain the construction of the iron caisson. NOTES ON EARTH WORK, EXCAVATION, CUTTING, AND FORMING EMBANKMENT UPON RAILWAYS. Article III.—Extent, Form, and Proportions. " Modern practice has reduced it to a price per cubic ; Professor Figjiolcs' Lecture. Dec. ISil. In my two previous communications (see pages 84 and 18G of the present volume,) I have endeavoured to show what is tlic price of earth work, taking ordinary soil as the standard, and then stated the price of excavation to be 4id., and of forming embankment under one mile in length to be 12d. and 3d. extra per additional mile ; and taking the average length to which earth has been led, I find earthwork to liave cost on the following lines, Midland Counties, 13</., Derby and Birmingham, 12\d., Great Western, 12d., and North Union, lOJrf. I have aho stated, at page 186, the extent to which it is pru- dent to employ horse power to be 2i miles, and even when there is a steam liorse, as the locomotive was once named, it is not prudent to carry earth more than 4 miles. I now propose to consider whether it be not more economical to run excava
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