(For definition of offset and form of test specimen, see Fig.

38.) _Cleavage_: The cleavage tests will be made on specimens of the form and size shown in Fig.45.The apparatus will be as shown in Fig.44.The maximum load only will be taken and the result expressed in pounds per inch of width.

The speed of the moving head will be 0.25 inch per minute.
_Moisture Determinations_ Moisture determinations will be made on all specimens tested except those to be photographed or kept for exhibit.

A 1-inch disk will be cut from near the point of failure of bending and compression parallel specimens, from the portion under the plate in the case of the compression perpendicular specimens, and from the centre of the hardness test specimens.

The beads from the shear specimens will be used as moisture disks.