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The width of the packing space round the trunnions is 5/8ths of an inch, and the diameter of the pipe passing through the trunnion 4-5/8ths, which leaves 11/16ths for the thickness of the metal of the bearing.
It is formed of iron plates 3/8ths of an inch thick, riveted together. It is furnished with 181 brass tubes 1-7/8 inch diameter and 10 feet long, secured at the ends by ferules. The tube plate at the smoke box end is 5/8ths of an inch thick, and the tube plates above the tubes are tied together by eight iron rods 7/8ths of an inch thick, extending from end to end of the boiler.
Among the relics found was a stone quern, measuring about 21 inches by 12 by 7-3/4, and having, on each of two opposite sides, a basin-shaped depression about 6 inches in diameter at the top, and 2-3/4 inches in depth; also a small stone ring, 1-1/4 inches in diameter, and 3/8ths in thickness, with a hole in the centre 1/4 inch across; the edges are rounded, and it is similar to those I have seen in museums, called spindle whorls.
On the 8th of March he again became ill, and towards the end of that month had an alarming attack of bronchitis and congestion of the lungs. Slight hope was entertained of his recovery for some days, but this illness appeared a turning-point, and by the 8th of April he was able to come down-stairs. No more 8ths were marked by disaster or recovery till again the 8th of August.
My practice in hiving, is to get the bees into the hive as quick as possible, hang on the bottom board, fasten the same forward by means of the button so as to prevent the escape of any of the bees, except through the mouth of the hive; place the hive immediately where I intend it shall stand through the season. Let the bottom board down 3/8ths of an inch, on the third day after swarming.
Sir J. Simpson has proved that the head of the male infant exceeds that of the female by 3/8ths of an inch in circumference, and by 1/8th in transverse diameter. Quetelet has shewn that woman is born smaller than man; see Dr.
The flue of the Nile would require to be 35- 1/2 inches in diameter if made of the cylindrical form, and 47-3/4 feet long; the tubes of a locomotive if 1-3/8ths inch diameter would only require to be 22.19 inches long with the same velocity of draught; but as the draught is 11.11 times faster than in a flue boiler, the tubes ought to be 246.558 inches, or about 20-1/2 feet long according to this proportion.
Another missile which has been introduced by the French airmen, and which is extremely deadly when hurled against dense masses of men, is the steel arrow, or "flechette" as it is called. It is a fiendish projectile consisting in reality of a pencil of solid polished steel, 4 3/4 inches in length. The lower end has a sharp tapering point, 5/8ths of an inch in length.
If the pitch be given to find the breadth, divide the above strength by the square of the pitch in inches; or if the breadth be given, then to find the pitch divide the strength by the breadth in inches, and extract the square root of the quotient, which is the proper pitch in inches. The length of the teeth is usually about 5/8ths of the pitch.
When the tubes are small in diameter they are apt to become partially choked with pieces of coke; but an internal diameter of 1-5/8ths may be employed without inconvenience if the draught be of medium intensity. Q. Will you illustrate the relation between the length and diameter of locomotive tubes by a comparison with the proportion of flues in flue boilers?
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