The early Anglo-Indian botanists, such as Roxburgh, Royle, Griffith, Wight, had not come across the bitter orange wild; but there is every probability that the eastern region of India was its original country. Wallich mentions Silhet,[906] but without asserting that the species was wild in this locality. Later, Sir Joseph Hooker[907] saw the bitter orange certainly wild in several districts to the south of the Himalayas, from Garwal and Sikkim as far as Khasia. The fruit was spherical or slightly flattened, two inches in diameter, bright in colour, and uneatable, of mawkish and bitter taste (“if I remember right,” says the author). _Citrus fusca_, Loureiro,[908] similar, he says, to pl. 23 of Rumphius, and wild in Cochin-China and China, may very likely be the bitter orange whose area extends to the east. +Sweet Orange+—Italian, _Arancio dolce_; German, _Apfelsine_. _Citrus Aurantium sinense_, Gallesio. Royle[909] says that sweet oranges grow wild at Silhet and in the Nilgherry Hills, but his assertion is not accompanied with sufficient detail to give it importance. According to the same author, Turner’s expedition gathered “delicious” wild oranges at Buxedwar, a locality to the north-east of Rungpoor, in the province of Bengal. On the other hand, Brandis and Sir Joseph Hooker do not mention the sweet orange as wild in British India; they only give it as cultivated. Kurz does not mention it in his forest flora of British Burmah. Further east, in Cochin-China, Loureiro[910] describes a _C. Aurantium_, with bitter-sweet (_acido-dulcis_) pulp, which appears to be the sweet orange, and which is found both wild and cultivated in China and Cochin-China. Chinese authors consider orange trees in general as natives of their country, but precise information about each species and variety is wanting on this head. From the collected facts, it seems that the sweet orange is a native of Southern China and of Cochin-China, with a doubtful and accidental extension of area by seed into India. By seeking in what country it was first cultivated, and how it was propagated, some light may be thrown upon the origin, and upon the distinction between the bitter and sweet orange. So large a fruit, and one so agreeable to the palate as the sweet orange, can hardly have existed in any district, without some attempts having been made to cultivate it. It is easily raised from seed, and nearly always produces the wished-for quality. Neither can ancient travellers and historians have neglected to notice the introduction of so remarkable a fruit tree. On this historical point Gallesio’s study of ancient authors has produced extremely interesting results.