By lap 2, Stanley Webb riding a 5 hp Triumph had to stop at St. Johns to adjust a timing-belt and retired on lap 3 with a problem with the engine exhaust-valve.

By placing the back end of the dop into one of the many holes, the stone could be introduced to the lap at precise angles.

By the second lap, rain started to fall and cars were starting to lose traction on the dry tyres.

By lap 18 Pryce had moved from 22nd to 13th place.

By the fifth lap he was in the lead and had opened up an 8 second lead on Moss by lap 10 with Collins third on a drying track.

By 1957, the field was now being taken around for two warm-up laps ( one " parade " lap, and one " pace " lap ), an increase over the single lap used previously.

By lap 10, Ireland had already stormed his way back to fourth, behind McLaren's Cooper, as Moss and Brabham continued to draw away at a second a lap, swapping the lead back and forth.

By lap 19, however, Clark had lowered the lap record to 1: 15. 4, well under his qualifying time, and retaken the lead for good.

By lap 15, Clark was up into 14th place with his engine still not sounding entirely right.

By lap 24, Hill led by almost half a lap.

By lap six, Andretti had opened up a gap to Amon and was threatening to get by Stewart.

By lap 17, the Ferraris of Ickx and Regazzoni had moved by Rodríguez, but by that time, Stewart's lead was nearly twenty seconds.

By lap 10 he was over 3 seconds ahead.

By lap 32, Ickx had retired with a spark plug problem, Regazzoni had an engine blow up and Fittipaldi had passed Schenken and set about catching Stewart.

By lap 16, Stewart and Jacky Ickx retired with engine problems, followed two laps later by Clay Regazzoni.

By the time Ickx could get around Stewart on lap 17, Cevert's lead was 5. 7 seconds.

By lap 49, Ronnie Peterson crashed into the catch fencing, whilst Brambilla surrendered third place to change a blistered tyre, resuming but retiring with brake problems.

By lap 12, it was obvious that Lauda's car was not set up fully to cope with wet conditions and by lap 15 Hunt stormed by to lead for the fifth time this season.

By the end of 1863, at Lincoln's direction, General Lorenzo Thomas had recruited 20 regiments of blacks from the Mississippi Valley.

By comparing the form of several yupanas, researchers found that calculations were based using the Fibonacci sequence 1, 1, 2, 3, 5 and powers of 10, 20 and 40 as place values for the different fields in the instrument.

By that September Johnson declared he was in favor of emancipation, describing slavery as a " cancer on our society ", and also succeeded in enlisting 20, 000 black troops for the Union.

By French aristocrat Mélanie de Gaufridy de Dortan ( 1876 – 1937 ), he had Roger Marie Vincent Philippe Lévêque de Vilmorin ( 12 September 1905 – 20 July 1980 )

By the time of the war, they fielded the SdKfz 10 / 4 and 6 / 2, cargo halftracks mounting single 20 mm or 37 mm AA guns ( respectively ).

By 1700, approximately 20 percent of Berlin's residents were French, and their cultural influence on the city was immense.

By the 10th Revision of the WHO International Statistical Classification of Diseases, Injuries and Causes of Death, low vision is defined as visual acuity of less than 20 / 60 ( 6 / 18 ), but equal to or better than 20 / 200 ( 6 / 60 ), or corresponding visual field loss to less than 20 degrees, in the better eye with best possible correction.

By the time of his death sales of the company had reached C $ 20 million, which is the equivalent of C $ 160 million in 2004 dollars.

By 1951 about 20 % of the British economy had been taken into public ownership.

By contrast, curry powders and pastes produced and consumed in India are extremely diverse ; some red, some yellow, some brown ; some with five spices and some with as many as 20 or more.

By turning these space to public use, the building got 20 % plot ratio more as bonus.

By the 1860 census on the verge of the Civil War, 91. 7 percent of the black population, or nearly 20, 000 people, were free.

By the afternoon of 20 December Vitellius was dead, his armies having been defeated by the Flavian legions.

By the early 18th century, other publishers began to issue collections of dances as well ; a conservative estimate of the number of dances in the English style published between 1651 and 1810 would run to around 20, 000.

By the 1530s, the writings of Erasmus accounted for 10 to 20 percent of all book sales.

By 1916 there are a number of films in which there are around 15 to 20 true reverse-angle cuts per hundred shot transitions, such as The Deserter ( Scott Sidney ) and Going Straight.

By the time of the first men's world championships in 1996, 20 nations played floorball, with 12 of them participating at the tournament.

By 1977 there were 15 to 20 Greenpeace groups around the world.

By running DNA through an EtBr-treated gel and visualizing it with UV light, any band containing more than ~ 20 ng DNA becomes distinctly visible.

By definition, granite is an igneous rock with at least 20 % quartz by volume.

By 1938, an estimated 20 individuals remained in the wild, some 6-8 of which were located in the old-growth forest called the Singer Tract in Louisiana, where logging rights were held by the Chicago Mill and Lumber Company.

By December 1941, Hitler's troops had advanced to within 20 miles of the Kremlin in Moscow.

By October 20, ice is formed over all the rivers.