Yuanrong jiaoyi 圜容較義 / Matteo Ricci (Li Madou 利瑪竇) and Li Zhizao 李之藻 (1614)
Variant pronunciation: Huanrong jiaoyi.

"圜容較義 Huanrong jiaoyi (Treatise on isoperimetric figures), a translation of Clavius's De figuris isoperimetris done by Ricci and Li Zhizao in Beijing in 1609 and published by the latter in 1614.'--Cf. Gianni Criveller, "The Missionary Method of Matteo Ricci" in Tripod Autumn 2010 Vol. 30 - No. 158 400th Anniversary of Matteo Ricci 1552-1610.

Jap-Sin II, 14
Yuanrong jiaoyi 圜容較義
Dictated orally by Li Madou (Matteo Ricci) and written down by Li Zhizao.
One juan. Chinese bamboo paper in one volume with a cloth case. No date or place of publication.

The cover bears a label with the title in Chinese and a Latin inscription that reads: “P. Mathaei Ricci | De Geometria.”

There is a preface by Li Zhizao in four folios, dated Wanli 42 (1614). At the top of folio 1 the title of the book is given; below are the names of the translators: 西海利瑪竇授 | 浙西李之藻演. The text consists of twenty-four folios. There are ten columns in each half folio with twenty-two characters in each column. The title of the book is given in the middle of each folio, and the number of the folio below the fish tail.
This is a short geometrical treatise, consisting of eighteen propositions, on the proportional capacities of various figures and bodies, commencing with the triangle and proceeding to the circle and sphere.
According to Li Zhizao’s preface, this book was first published in Peking in the eleventh month of Wanli 36 (7 Dec. 1608–5 Jan. 1609). Our 1614 edition was published in Hangzhou by Wang Mengpu 汪孟樸.

Cf. Pfister, p. 39; Hsü 1949, pp. 274–277. D’Elia (FR, II, p. 178) gives the following places where the 1614 edition can be located: Vatican Library (Barber. Orient., 143.16); Biblioteca Vittorio Emanuele, Rome; Bibliothèque Nationale, Paris (Courant 4864); Roman Jesuit Archive (Jap-Sin II, 14); to this we may add: Academia Sinica, Taipei. For later editions see Siku quanshu 四庫全書 (天文算法類), Shoushange congshu 守山閣叢書 , Haishan xianguan congshu 海山仙館叢書 , Zhong Xi suanxue sizhong 中西算學四種 (published by the Saoyeshanfang 掃葉山房), Zhong-Xi suanxue congshu chubian 中西算學叢書初 , Xixue dacheng 西學大成 and Congshu jicheng chubian 叢書集成初編. --Cf. Albert Chan, Chinese books and documents in the Jesuit Archives in Rome, pp.292-293.

See online at World Digital Library (Chinese)
Haishan xianguan congshu 海山仙館叢書 ed. online at Hathi Trust.