The cover bears a blue label with the title in Chinese and a Latin inscription: “De planisphaerio | a doctore christiano | Li chi yao, 2 tomi (1607).”

Pfister (p. 39, no. 16) gives this as the work of Matteo Ricci. But from the preface of Li Zhizao it appears that Li studied the matter under Ricci, while he was in Peking. He probably took notes from Ricci and then wrote his treatise when he was on his way to Fujian. Li did not follow exactly what he had learned from Ricci, rather he added something of his own. Hence he used the word yan 演 to denote that the treatise was expounded by him. The original work that Ricci used was the Astrolabium by Christopher Clavius, published in Rome in 1593. This book is to be found in the Beitang Library (Verhaeren, no. 1291). It was a gift from the author to Ricci. On the title page one still can see the autograph of the author: “P. Mathaeo Riccio donum auctoris | alla China.” See also Fang Hao 1966, pp. 48–49 and id., 1969, pp. 54–62.
It is to be noted that according to Pfister (p. 157, no. 8) Johann Terrenz [Schreck] wrote a book that bears the same title: 渾蓋通憲圖說 Hoen kai t’ong hien t’ou chouo, Abrégé des calculs à faire pour les éclipses solaires, édité par Li Tche tsao, 3 vol., Pékin.”
This book was published in the Tianxue chuhan 天學初函 and also copied into the Siku quanshu 四庫全書 and the Shoushange congshu 守山閣叢書 .
Cf. Feng 1938, p. 53; Hsü 1949, pp. 263–264; SKTY 3:2184–2185; Courant 4899–4900.

Hungai tongxian tushuo 渾蓋通憲圖說 (Illustrated Explanation of Cosmologcal Patterns), 1607. Alt.....the Sphere and the Astrolabe), Commentary on Joannes de Sacrabosco Astrolabe. Li Zhizao, 1611. Discussed stereographic projections for the astrolabe. The geographical latitude was set as 40ºN, which corresponds to that of Beijing.... Cf. Standaert, Handbook of Christianity in China, p.693, 694, 712 .
Jianpingyi shuo 簡平儀說 (Explanation of the Simple Altazimuth Quadrant), Sabatino De Ursis, 1611 –Cf. Standaert, Handbook of Christianity in China, p. 693.

Hungai tongxian tushuo 渾蓋通憲圖說 (Illustrated Explanation of Cosmologcal Patterns), 1607. Alt.....the Sphere and the Astrolabe), Commentary on Joannes de Sacrabosco Astrolabe. Li Zhizao, 1611. Discussed stereographic projections for the astrolabe. The geographical latitude was set as 40ºN, which corresponds to that of Beijing.... Cf. Standaert, Handbook of Christianity in China, p.693, 694, 712.
See also: Albert Chan, S.J., Chinese books and documents in the Jesuit Archives in Rome, pp. 363-364. Corresponds to Japonica-Sinica II, 58. Also appears in Tianxue chuhan, vol.3.

Local access dig.pdf. [Li-Hungai Barb.Or 142.pdf]

Medieval scientific instruments and the development of navigational instruments in the XVth and XVIth centuries / by Francis Maddison.
Agrupamento de Estudos de Cartografia Antiga. Série separata; 30
"Separata da Revista da Universidade de Coimbra, vol. xxiv."