Note 41 — Chapter IV · THE JEW AND THE TALMUD
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Arubím, or mixtures, were forbidden by the Mosaic Law (Lev. xix. 19), and were greatly extended by the Oral Law, such as grafting, sowing different kinds of seeds in the same soil, wearing a garment of wool and linen mixed, and so forth. The subject is copiously treated in the nine chapters of Kilaim (Heterogeneous, or Things not to be Mixed), the fourth tract of the first order, Seder Zeraaim (the Order of Seeds).