mplete height, 3 feet 9 inches. A Step-Ladder, 23 inches
high. A Kitchen Table, 14 1/2 inches high. A Chair to correspond. A
Four-legged Stool, with projecting top and cross rails, height 14
inches. A Tub, with handles and projecting hoops, and the divisions
between the staves plainly marked. A strong Trestle, 18 inches high. A
Hollow Cylinder, 9 inches in diameter, and 12 inches long, divided
lengthwise. A Hollow Sphere, 9 inches in diameter, divided into
semi-spheres, one of which is again divided into quarters; the
semi-sphere, when placed on the cylinder, gives the form and principles
of shading a dome, whilst one of the quarters placed on half the
cylinder forms a niche.

*Davidson's Apparatus for Teaching Practical Geometry (22 models), L5.

*Binn's Models for Illustrating the Elementary Principles of
Orthographic Projection as applied to Mechanical Drawing, in box, L1
10s.

Miller's Class Drawing Models.--These Models are particularly adapted
for teaching large classes; the stand is very strong, and the universal
joint will hold the Models in any position. _Wood Models_: Square Prism,
12 inches side, 18 inches high; Hexagonal Prism, 14 inches side, 18
inches high; Cube, 14 inches side; Cylinder, 13 inches diameter, 16
inches high; Hexagon Pyramid, 14 inches diameter, 22 1/2 inches side;
Square Pyramid, 14 inches side, 22 1/2 inches side; Cone, 13 inches
diameter, 22 1/2 inches side; Skeleton Cube, 19 inches solid wood 1 3/4
inch square; Intersecting Circles, 19 inches solid wood 2 1/4 by 1 1/2
inches. _Wire Models_: Triangular Prism, 17 inches side, 22 inches high;
Square Prism, 14 inches side, 20 inches high; Hexagonal Prism, 16 inches
diameter, 21 inches high; Cylinder, 14 inches diameter, 21 inches high;
Hexagon Pyramid, 18 inches diameter, 24 inches high; Square Pyramid, 17
inches side, 24 inches high; Cone, 17 inches side, 24 inches high;
Skeleton Cube, 19 inches side; Intersecting Circles, 19 inches side;
Plain Circle, 19 inches side; Plain Square, 19 inches side. Table, 27
inches by 21 1/2 inches. Stand. The set complete, L14 13s.

Vulcanite Set Square, 5s.

Large Compasses, with chalk-holder, 5s.

*Slip, two set squares and =T= square, 5s.

*Parkes's Case of Instruments, containing 6-inch compasses with pen and
pencil leg, 5s.

*Prize Instrument Case, with 6-inch compasses, pen and pencil leg, 2
small compasses, pen and scale, 18s.

6-inch Compasses, with shifting pen and point, 4s. 6d.

Smal