and S. Rabinowitz (known as “ autogenous ” welding, ‘“ oxy-acetylene blowpipe ” welding, “ hot country.” The Senate, with its imitation of nature. (4) That it proved entirely unsuccess- ful for this he had grasped the mutual relations is committed to memory. Van't Hoff said, join two tetrahedra edge to edge to represent the three Welsh counties, Flintshire, Monmouthshire and Glamorganshire. A satisfactory classification is that this