THERE are many practical hints in this little book which appeal to common sense, although from the point of view of the ordinary electric wireman they are quite unorthodox. The author points out, for example, that the wiring of many houses is spoilt by placing the wall sockets indiscriminately without regard to the position or character of the apparatus to be connected to them. It is as absurd to place the wall socket for a floor standard lamp or vacuum cleaner three feet from the floor as to put one for a table standard at floor level, if the table is to be against the wall. It is quite right to put the wall socket for an electric fire on the skirting, but the almost universal practice of placing the switch there as well is foolish. It is true that this saves the cost of a wood block and a few feet of wire, but this saving of a shilling or two on capital cost is only effected by compelling people for ever afterwards to stoop down to the floor when they want to switch on or off the electric fire. The book finishes up with a useful chapter on bells, telephones, fire alarms, and radio. As a rule, it is advisable to have all these kinds of wiring done before the building is actually furnished. In the case of telephones, however, it is sometimes difficult to tell which is the most suitable place for them before the house is furnished, and hence surface wiring is very frequently used for telephone work. The proper wiring of all electric radio receiving sets deserves special care. Unless the Institution of Electrical Engineers Wiring Regulations, published in June 1928, be followed, there may be danger from shock or fire.
The Electric Wiring of Buildings.
. Pp. x + 258. (London: Sir Isaac Pitman and Sons, Ltd., 1930.) 10s. 6d. net.