The work performed during the winter consisted, principally, of excavation of earth and rock, in tunnelling, and in quarrying stone, and preparing them for use in the construction of the culverts, bridges, and other erections connected with the aqueduct, which has greatly facilitated the spring operations. But, in order that some idea may be formed of the progress of the work, we beg leave to present the following statement, embracing the principal operations on the line ; such as the length of aqueduct completed, the number and extent of tunnel excavation, the number and capacity of the culverts erected, &c. :

1st. AGIUEDUCT. The whole length of aqueduct, arched and complete, was, on the 25th of June last, 10,280 feet, or about two miles in length. 2d. SIDE WALL. The length of the side wall of the aqueduct, ready to receive the arch, exclusive of that already arched, was 18.376 feet, or about three and a half miles in length. 3d. CULVERTS. There are twenty-two culverts completed and in use, discharging the water from the several creeks and runs, some of them of considerable magnitude ; and their aggregate length is 1825 feet. The number partly finished was seven, and their length is 578 feet. Seven of these culverts measure from 100 to 148 feet in length seven ;

of them from 80 to 96 feet, and thirteen of them from 50 to 72 feet. Nine of them are large, measuring from six to ten feet span, eight of them from three to four feet span and ;