Sowerby joined the
Duke of Bedford’s 1906 Mission to collect zoological specimens in Shaanxi for the
British Museum during which time he discovered a new species of
Jerboa which was subsequently named after him:
Dipus sagitta sowerby. Sowerby was taken on as a naturalist for
Robert Sterling Clark's Expedition of 1909 which sought specimens from the
Yellow River into Shaanxi and then to
Gansu province and made the first map of a little-known area of China. Clarke and Sowerby later published a book about the expedition entitled
Through Shên-kan: the account of the Clark expedition in north China, 1908-9. Sowerby married Mary Ann Mesny in 1909, but she was to die just 5 years later. He made four separate expeditions into
Manchuria and parts of
Mongolia during the next few years, the last being in 1915 and then wrote his book
Fur and Feather in North China. In the autumn of 1915 he went over to meet his brother and sister, both missionaries in Sian, and took the opportunity to seek more specimens in the
Qinling range to the south of the city. ==Shaanxi Relief==