Summary

Charles Welsh Dictionary of National Biography… (1912)

In 1872, whilst engaged in his official duties on the Pacific coast, he was consulted as to an old controversy in regard to animal locomotion, viz. whether a trotting horse at any portion of its stride has all its feet entirely off the ground. On the race-course at Sacramento, California, in May 1872, he made several negatives of Occident, a celebrated horse, while trotting laterally in front of his camera at speeds varying from 2 mins. 25 secs, to 2 mins. 18 secs, per mile. These experiments showed that the horse's four feet were at times all off the ground.
Source: Wikisource

Charles Welsh Dictionary of National Biography… (1912)

DE LA RUE, Sir THOMAS ANDROS, first baronet (1849–1911) , printer, born in London on 26 May 1849, was second of the four sons of Warren de la Rue [see Rue, Warren de la] , astronomer and inventor, by his wife Georgiana, third daughter of Thomas Bowles of Guernsey. Thomas de la Rue [q. v.] was his grandfather. He entered Rugby in Feb. 1864, and matriculating in 1868 from St. John's College, Cambridge, graduated B.A. in 1871 and proceeded M.A. in 1874. In 1871 he joined the family printing business established by his grandfather, which was celebrated for its playing cards and printed stamps.
Source: Wikisource

Charles Welsh Dictionary of National Biography… (1912)

The shutters of the cameras were operated by means of thin thread stretched across the path of the animal the record of whose movements was to be taken. Some of the results of these early experiments illustrating the action of horses whilst walking, trotting, or galloping were published in 1878 under the title of 'The Horse in Motion.' In his analysis of the quadrupedal walk, Muybridge arrived at the conclusion that the successive foot-fallings are invariable and are probably common to all quadrupeds.
Source: Wikisource

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