In manual systems, operating positions were provided so that under normal trafüc conditions 95 per cent, of calls would be answered within ten seconds, each call requiring a precise amount of an operator's time in automatic systems the machinery was provided to ensure that practically no calls were delayed, The traffic engineer's primary data were the volume of traffic in the busy hour of business days, and call connecting facilities were based on that traffic, Pure chance laws were normally applicable to originating telephone calls and it was possible to calculate the probability of a call being delayed when a certain volume of trame was offered to a group of trunks in one hour. The delay probability was a measure of the grade of service, and the greater this probability was, the worse would be the service though the facilities would carry more calls, Mre Fi Shanghai Special Municipality, Amour $50,000,000 worth of medical supplies and funds have been contributed to China by various American charitable bodies since the outbreak of the Sino-Japanese hostilities, says the "Shun Pao." The relief
among the ' in the war zones and in The North China flood work is Pang ud out mainly
areas, particularly among wounded civilians and soldiers, the report states.
The larger a trunk group was, the more the call capacity of any individual trunk would be and this fact had exerted much influence on the mechanical design of automatic switches and switch inter-connecting methods generally. The Shanghai rotary system employed 100 point line finders and 300 point group selectors and the interlinking systems aimed at gathering subscribers' small trafic into large, efficient groups of connecting circuits, and at switching of trafic in large bulks as much as possible, The author described various automatic switches, the methods of com: puting how many were needed in.given case and the inter-linking practices to ensure maximum call carrying capacity; grading' of trunks whereby non-coinciding peaks in divisions of traffic were served by common' trunks, was described, The administration of facilities to minimize interruptions in the flow of calls was explained, covering methods of recording calls meeting or foreshowing a no trunk' condition.
Tue health report of the French Municipality for the week ending December 2, shows that the total number of deaths from all causes amongst the foreign and Chinese population in the Concession were Foreigners 7 and Chinese 237. Deaths from notifiable diseases were—Foreigners: Cerebrospinal Mening itis 2, Chinese: Tuberculosis 28, Typhoid and Paratyphoid Fevers 6; Dysentery 4; Beri-beri 4 and Scarlatina, Pneumonia 1 each, The Shanghai Municipal Council health report for the week ending midnight December 2, shows that the total number of deaths from all causes amongst the foreign and Chinese population in the Settlement were—Foreigners and Chinese 701. Deaths from notifiable diseases were—Foreigners: Typhoid Fever 2; Tuberculosis 1 and Bacillary Dysentery 1. Chinese: Tuberculosis 34; Typhoid Fever 28; Dysentery 13; Beri-beri 3; Diphtheria 2; Cerebrospinal Fever 2; Malaria 2 and Relapsing Fever 1.
Text read from the printed page and cleaned; old type leaves the occasional error.