This project presents in three volumes the Mishnah s and the Tosefta s first division, Zera im (Agriculture), organized in eleven topical tractates, together with a systematic history of the law of Zeraim in the Mishnah. To the exposition of the Halakhah on the chosen topic, the Mishnah-tractates are primary but complemented by the Tosefta s presentation of its collection of glosses of the Mishnah s law and supplements to that law.The Mishnah s and the Tosefta s tractates are integrated, with the Tosefta s complement given in the setting of the Mishnah s rules, and the whole is given in English translation. The presentation in each case encompasses an introduction, a form-analytical translation and commentary, a systematic integration of the Tosefta s compositions into the Mishnah s laws, an explanation of the details of the law, and an inquiry into how the Halakhah of the Mishnah and that of the Tosefta intersect, item by item.