center of the tower, and the tops of all the forms, after each shift,
were carefully set from it by measurement, thus keeping the structure
plumb.

The first 23 in. of the barrel of the tower was moulded with special
outside forms, constructed so as to form the bases of the large
pilasters. After eleven applications of the 6-ft. forms, these 23-in.
sections were reversed to form the capitals, thus making these
pilasters, 69 ft. 10 in. over all.

The forms of the 4-ft. belt and beading were made in twelve sections of
simple segments and vertical lagging, as shown in Fig. 2.

Two sets of the outside forms were split longitudinally, as shown in
Fig. 2, and used to form the small pilasters. The first set was put in
place, filled, and the concrete allowed to harden. The bolts were
loosened and the forms raised 5-1/2 in. vertically, again bolted up, and
the second set was placed in position, bringing the top of the second
set up to the bottom of the cornice. The bases and capitals of the small
pilasters were moulded on afterward.

The cornice forms are clearly shown in Fig. 2. The small boxes
separating the dentils are made of light stuff, and tacked into the
cornice forms so that, in stripping, they would remain in place and
could be taken out separately, in order to prevent breaking off the
corners of the dentils. A number of outside and inside sections were
sawed in half horizontally in order to provide forms for the parapet
wall.

The inside diameter of the tank is 8 in. greater than the inside