FEBa UARV 23R l >, 1907.

THE AUTOCAR B :Journal publtsbeb in tbe interests of tbe mecbantcalll? propelleb roab carriage.

EDITED BY H. WALTER STANER.

No. 592. VoL. XVIII. SATURDAY, FEBRUARY 23RD, 1907. [P RICE 3D.

THE AUTOCAR.

(Published Weekly. )

Registered as a newspaper for transmissi on in the United Kingdom.

Entered as second-class matter in the New York (N.Y.) Post Office.

EDITORIAL OFFICE :

COVENTRY.

PUBLISHING OFFICES:

20, TUDOR STREET, LONDON-, E.C. , ENGLAND.

CONTENTS.

NOTES

. . . . . . . . . . . . . .

USEFUL HI NTS AND TIPS : A NEW ANTI-FREEZING MJXTURE-

GAUZE IN CARBURETTERS-RueBING TYRES . . . . THE 8 H . P . SJZAIRE AND NAUDIN LIGHT CAR (ILLUSTRATED) LONDON TO E DINBURGH R UNS (ILLUSTRATED) SIDE-SLIP A ND SKID PREVENTION CoMPETITION .. TESTS OF A P ETROL ENGINE (ILLUSTRATED) THE A.C. HANDI CAPPI NG SYSTEM ..

253 . . 254-257 . . 258-259 . . 2 59 .. 260-261

THE 22 H.P . BERLIET CAR ( ILLUSTRATED) . . , . . . . . CONTINENTAL NOTES AND NEWS : TH E GRAND PRIX ( ILLUSTRATED)

-RESPONSIBILITY FOR ACCIDENTS-SERPOLLET'S .MONUMENT -THE PEKIN TO PARIS RIDE-AUTO;\toBILE SHOWS-How :MOTORISTS ARE HAMPERED I N GERMANY . . . . 264- 265 S IMMS-BOSCH H IGH - TENS I ON MAGNETOS (ILLUSTRATED ) . . . . 266-2 68 THE PROSECUTION OF j ARRETT. BY EARL RUSSELL 268 CORRESPONDENCE . . . . . . 269-274 I RISH RELIABILIT Y TRIALS . . . , . . 275 THE LATE l\'l. SERPOLLET : A N APPRECIATION 276 A SIMPLE CARBURETTER CONTROL (ILLUSTRATED) . . 276 A TYRE M .AK I NG MACHINE (ILLUSTRATED) . . 277 ARMY MOTOR R ESERVE. TH E M.l\'1.C. R E VIVED . . 277 IMPROVED CARBURATION. IN THE H ousE OF Cm,1MONs . . 278 THE G .B. BALLOON RACE. THE T .T. ENTRIES 278 THE EDINBURGH MOTOR CAR SHOW . . 279 FLASHES . . . . 2130-2 82 CLUB DOINGS . . . . . . 283 MOTOR CARS FOR MILITARY PURPOSES 284 POWER TRACTION ON ROADS . . . . 2 85-2 86

" THE AUTOCAR " SUBSCRIPTION RATES: British Isles, 16s. Abroad (th in paper edition) , 22s. 8d . per annum.

( Notes. The Fuel Limit Race s . At th e moment there are t1Y enty -f1Ye en tri es fo r the Tourist T rophy Race and five for th e H eavy Touring Ca r Race . \Ve a re informed by th e secretary of the Automobile Club that sel'eral Continental rnanuhcture rs have written for full in for mation about both these races. It is like ly , therefore, that the T ourist Trophy will be even more of an international e1·ent than in th e past, though hitherto it has been won uy British cars. We must say we a re somew ha t disappointed in the entries for both races . To take the Tourist Trophy first, there is no doubt that in 1905 a good many cars were entered light-hearteJ !y without the entrants realising the difficult nature of the ordea l. Last year's event p rm·ed this still more conc lusiYely , so that it may be taken that the t1Yenty- fiv e entries are from people 11·ho have grasped th e magnitude of th e task they have undert aken. Although twenty -five seems a disappointing number, it is not really so, as the entries do not finally close till the e nd of April, but as the re is only a 1-veek till th ey close at ordinary fees it is quite time that those who mean to compete had not ified th eir intention .

We do not regard this small entry as a ny sign of lack of inte rest; it is d ue partly to the fact we have mentioned and partly to th e early date of the race . Many manufacturers have not the time to devote to the preparation of the cars for a race so earl y in the year as May . T o take last year 's race as an example, only two or three of the machines which took part in th e race in September were on the road at all in May. The Club ha been forced to hold the race in May, owing to the d esire of the Isle of Man authorities th a t it should ta ke p l a e then, and it is undoubtedly having some e ffect on the entries. Incidenta lly, too, it shows the desirability of getting rul es which will encourage the ordina ry stock car and the amateur owner. At present the race is practically a manufacturers' race, though th ere are, luckil y, a good many amateur drivers in it.

As to the H eavy Touring Car R ace, this has been asked for by so many makers tha t it certainly ought to have received better support th a n it is receiving, as we understand it was in response to special requests, and after the Club had satisfied itself th a t the manufacturers wanted such a race and would participate in it , th a t it was decided to hold it. H owever, all these things must have a beginning, and there will no doubt be a good many more entri es before the final date is passed. Still, even if the number is a sma ll one in the first year, we think th e H eavy Car Race will be a most inte resting event, and one which will grow m importa nce as tim e goes on.

ri es of Races.

A s our readers kn , we have long been in favour of what may be te ed completing th e series of fuel limit races of the ourist Trophy order. First there 1rns the T ourist Trop hy for the medium powered car; now we have the heavy touring car race for the large r and more powerful type, but as yet a fu e l limit race for small cars has not been instituted. At th e present tim e there is some agitation in favour of such an event, and, as we have said, we are great be li evers in completing the e ri es, so that th e th ree races shall represent the three p revalent types of car. At the ame time, it must be confessed that th e present moment is hardly a favourable opportunity for instituting another race, and it is now desirable in ma ny" ways that th e sma.11 ca.r event shoul d not be established before next year, as it could hardly be po sible with the tim e availabl e to organise it properly to t ake place during the I sle of Man race week in May. The suggestion that it sh ould be held in late September is, we should say, out of the question , as it has been in deference to the wishes of the Isl e of Man authorities that th e T ourist Trophy Race it elf ha been fixed for the earlier and, as far as th e competitors are concerned, far less conveni ent date . What we should lik e t o see done would be to make the