by F. Siemens; Journal Soc. Chem. Industry, July, 1885, and November, 1885.
"Fireplace Construction," by Pridgin Teale; the _Builder_, February, 1886.
"On Dissociation Temperatures," by Frederick Siemens; Royal Institution,
May 7, 1886.

* * * * *

Near Colorados, in the Argentine Republic, a large bed of superior coal has
been opened, and to the west of the Province of Buenos Ayres extensive
borax deposits have been discovered.

* * * * *




THE ANTI-FRICTION CONVEYER.


The accompanying engraving illustrates a remarkable invention. For ages,
screw conveyers for corn and meal have been employed, and in spite of the
power consumed and the rubbing of the material conveyed, they have
remained, with little exception, unimproved and without a rival. Now we
have a new conveyer, which, says _The Engineer_, in its simplicity excels
anything brought out for many years, and, until it is seen at work, makes a
heavier demand upon one's credulity than is often made by new mechanical
inventions. As will be seen from the engravings, the new conveyer consists
simply of a spiral of round steel rod mounted upon a quickly revolving
spindle by means of suitable clamps and arms. The spiral as made for
England is of 5/8 in. steel rod, because English people would not be