The tribes which had migrated from the East brought with them the agricultural knowledge of the Eastern nations. Among the noticeable evidences of this may be mentioned the “shaduf,” or dipping beam, used for irrigation in Egypt, which is similarly employed near Kano and Zaria. The absence of ploughs and the non-employment of cattle are, however, difficult to account for, as excellent cattle are common and thrive well in the most populous parts of the country. Tillage of the soil is still done entirely by hand, and, in those parts where the shallowest form exists, manure is extensively used. Among the many crops grown which are common to Oriental countries, as well as Northern Nigeria, are Guinea corn, maize, cotton, groundnuts, millet, benniseed, artichokes, wheat, and rice. Agriculture shows the greatest development in the Province of Kano, where the population is dense, especially in the vicinity of the town from which the Province takes its name. The concentration of a large population in this locality was doubtless occasioned by the protection thus obtained against local enemies; and, as the realisation of the necessity for this becomes less each year, so will the inhabitants spread out into the richer lands towards the south. At a radius of thirty miles from Kano, it may be said that every available acre of ground is cultivated. It may also be said that nearly all the cultivation is continuous, and has been so for a long period, the renovation of the soil being secured each year by manuring. The mode of cultivation in these localities is for the most part shallow, and in many places the crops grown subsist entirely upon the manure applied. The Director of Agriculture, in the _Bulletin of the Imperial Institute_, vol. xi. (1913), p. 626, refers to the lack of fertility in the soil and to the common practice of cropping without a fallow for a number of years in succession. He also mentions, among other matters of interest, the recent expansion in cultivation of cowpeas and groundnuts; these being respectively third and fourth in order of importance among the cultivated crops.