Manuale Theologiæ Moralis III (14 ed.)

Regarding the shape of hosts, canonist [Dom Augustine, O.S.B., commentates](https://archive.org/details/1917CodeOfCanonLawCommentary/page/n1474) on the [1917 Code Can. 815](https://books.google.com/books?id=2XbtF6Y21LUC&pg=PA295) (= 1983 [Can. 924](http://www.vatican.va/archive/ENG1104/__P3A.HTM)): > As to the *form* of the bread, *round* hosts are used in the Latin Church, whereas the Oriental Church employs square hosts.9 The *size* of the host for Holy Mass and exposition in the [Ostensorium](https://www.catholicculture.org/culture/library/dictionary/index.cfm?id=35337) should be from two to three and of the particles for distribution about one inch. The altar breads should be neither too thick nor too thin.10 > * * * > 9. Benedict XIV, [*Di Sac. Missæ* , I, c. 6 [ *De Hoſtia* , "On the Host"]](https://archive.org/details/bub_gb_grvah9lWrVwC/page/n31). > 10. Prümmer, [*l. c.* [ *Manuale Theologiæ Moralis* ], III, n. 171](https://archive.org/details/PrummerManualeTheologiaeMoralisIII/page/n90) **[PDF p. 94]**. >