Page:Popular Science Monthly Volume 88.djvu/688

 Popular Science Monthly

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graph itself. The singer stood practical- ly upon the edge of this huge horn's mouth, for such was the room. The results were no better than those ob- tained by stationing the singer in front of an ordinary phonograph in an ordi- nary room. As a result we find that no special effort is made by the phonograph companies to utilize rooms of special shape so as to gather all sounds and con- centrate them upon the record.

��which, he claims, adequately prevents the cab from upsetting, even in going around the sharpest and swiftest of curves. The additional wheel is placed under the driver's seat, almost in dan- gerous proximity to the horse's heels. It is fitted with springs on either side and performs the incidental function of absorbing jars and jolts. Even in spite of the added factor of safety which the third wheel provides, it is doubtful if the cab will continue to be popular in London. Cheap taxicab service and the fam- ous London 'bus have crowd- ed the horse almost entirelv from London thoroughfares. Hansoms, which are just now beginning to lose their vogue in New York, have not been seen in London streets for se\'eral years. One of the last to be remo\'ed has been

���A London cabby designed this three- wheeled cab. The third wheel prevents the cab from tipping over, even when mak- ing the shortest and quickest of turns

It is difficult to believe that the technique of making records cannot be improved. In view of the elaborate studies of echoes and reverberations made in large auditoriums for the pur- pose of improving their acoustic proper- ties, it seems that the time is now ripe for a new series of experiments which will show how those sounds may be gath- ered which are now lost.

The record made by the artist is called a master record. In fact, two records are made, one being hermetically sealed and stored away in the company's archives for future generations. The other record is used for the preparation of a die for making commercial records.

This Cab Simply Can't Tip Over

A CITY cabman of London has devised and built an attachment in the form of a third wheel for his cab,

��placed in the British Museum as a relic for future generations to gape at.

Gasoline in Bulk for Panama

GASOLINE is being shipped in bulk to Panama. The first consign- ment arrived at Balboa in February and was unloaded into the new storage tank recently erected by the Panama Canal Commission. In Panama there is now stored fuel for ships of all sorts, gasoline, crude oil and Diesel oil. Considerable gasoline is still on hand in Panama in drums, the supply being sufificient to last at the present rate of consumption about five months.

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