. DISCOVERY A MONTHLY POPULAR JOURNAL or KNO^WLLDGE No. 4. APRIL 1920. PRICE 6d. NET. DISCOVERY. .\ Monthly Popular Journal of Know- ledge. Edited by A. S. Russell, i\ , 8 Severn Road, Sheffield, to whom all Editorial Communications should be addressed. Published by John Murray, 50A Albemarle Street, London, , to whom all Business Communications should be addressed. Advertisement Office : 16 Regent Street, London, Annual Subscription 65., or post free 7s. 6d. Single numbers 6i. net ; post free "jld. Editorial Notes A CLEAR, uncoloured statement of what commercial aircra
. DISCOVERY A MONTHLY POPULAR JOURNAL or KNO^WLLDGE No. 4. APRIL 1920. PRICE 6d. NET. DISCOVERY. .\ Monthly Popular Journal of Know- ledge. Edited by A. S. Russell, i\ , 8 Severn Road, Sheffield, to whom all Editorial Communications should be addressed. Published by John Murray, 50A Albemarle Street, London, , to whom all Business Communications should be addressed. Advertisement Office : 16 Regent Street, London, Annual Subscription 65., or post free 7s. 6d. Single numbers 6i. net ; post free "jld. Editorial Notes A CLEAR, uncoloured statement of what commercial aircraft can and cannot do has been recently given by Mr. Holt Thomas, and deserves attention. On the whole the prevailing opinion with regard to the com- mercial possibihties of aircraft is pessimistic. Yet during the war it looked sometimes as though aircraft were going to be everjlhing in the future. Mr. Thomas's view lies between these extremes. He re- cognises that in this country the aeroplane cannot compete at present with existing forms of transport, but it may supplement them. It can with advantage carry mails, parcels, and peissengers on urgent busi- ness, when part of the journey as ordinarilj' accom- pUshed is over the sea. Thus an aeroplane can com- pete with train and boat in a joumej' from London to Paris or to Cork or DubUn, but not to Manchester or Edinburgh. The aeroplane travels, of course, twice as quickly as a train, but there is time lost in getting to and from the aerodromes at both ends, which reduces the overall speed of the journey con- siderably. Moreover, trains can, and aeroplanes usually do not, travel at night. In addition to all this there is the weather. Fog is the great nuisance in fl\ing. Wind may help or hinder speed, but fog makes the pilot blind. Some kind of reliability of service is necessary before the business man will trust his messages or himself to the aeroplane. Yet, though we cannot abolish bad weather, we can partially con- quer it by s
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