rass the experimental one, which is the subject of the present watch and a time equation table, set the hand of the polar ring, containing the glass dial plate, the broad end of a coni- paper, has been completed and proved. clock to correspond thereto, and turn the vertical pillar on its The new… … -jj-| tun gun will doubtless have thrown tion. The polar clock is consequently- considerable light upon this vexed ques- 35 TUN GUN. PROJECTILE 115 LBS. CARTRIDGE 110 LBS. applicable in places where a sun dial tion. The trunnions are to be 16 inches would be of no avail: on the north side in…
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