We publish on page 205 an accurate drawing of the great Fifteen-inch
Gun at Fort Monroe, Virginia; and also a picture, from a recent
sketch, showing the experiments which are being made with a view to
test it. It is proper that we should say that the small drawing is
from the lithograph which is published in MAJOR BARNARD'S "Notes on
Sea-Coast Defense," published by Mr. D. Van Nostrand, of this city.
This gun was cast at Pittsburgh, Pennsylvania, by Knapp, Rudd, &, Co.,
under the directions of Captain T. J. Rodman, of the Ordnance Corps.
Its dimensions are as follows:
Total length 190 inches.
Length of calibre of bore 156 "
Length of ellipsoidal chamber 9 "
Total length of bore 165 "
Maximum exterior diameter 48 "
[Illustration: THE "CHEESE BOX" THAT MADE HISTORY AS IT APPEARED FOUR
MONTHS LATER