Original: In this habit he is known to have been influenced by the pioneering work of the meteorologist Luke Howard on the classification of clouds ; Constable 's annotations of his own copy of Researches About Atmospheric Phaenomena by Thomas Forster show him to have been fully abreast of meteorological terminology .
Simplified: p110 In this habit he is known to have been influenced by the pioneering work of the meteorologist Luke Howard on the classification of clouds .