126 HOUSE TELEPHONE INSTALLATIONS. 



The cost of an installation of three instruments as described, making use of existing bell batteries 

 and wires, would only amount to the cost of the instruments and the electrician s fee for fixing them. 

 This latter could not amount to more than a few shillings, so we may safely say that about thirty-three 

 shillings would complete the installation. If better-class instruments were used and a separate system 

 of wiring and batteries installed, the cost would be increased to something like five pounds, but there is 

 no question that it would be very much more reliable. 



In giving the approximate cost of various systems it has been assumed that the instruments will 

 be of the type suitable for fixing to the wall of the room. Table sets would be somewhat more expensive. 

 Finally, when considering the installation of a telephone system, it is worth while to spend a little time 

 in making the requirements of the case quite clear to the prospective contractor. It is not always the 

 simple matter that it appears on first sight, and a clear understanding before the work is started will often 

 save considerable confusion and disappointment. MAURICE HIRD. 



