[2793] Where the outer face of each stone forms an exact square; the pointings consequently having a netlike or reticulated appearance.
[2794] The vertical pointings or junctures lying one over the other.
[2795] De Re Rust. c. 38.
[2796] See Chapters [29] and [30] of this Book.
[2797] To which Pozzuolane belongs.
[2798] For making mortar.
[2799] Pounded marble mixed with quicklime.
[2800] “Lacte et croco” appears to be a preferable reading to “late e croco,” as given by the Bamberg MS.
[2801] It seems difficult to understand whether by the word “spiræ” he means astragals, or bases. It would almost appear, by the use of the word “subditæ,” that it is “bases” for the shafts. It is just possible, however, that the meaning may be that the “spiræ” were placed beneath the capitals which were added.
[2802] A different thing altogether from the Maltha or Pissasphalt of B. ii. c. 108. Festus describes it as a mixture of pitch and wax; and Palladius, in B. i. c. 17, speaks of it as being composed of tar, grease, and lime boiled; and in c. 35 he describes Maltha caldaria as a mixture of hammoniacum, figs, tow, tar, and melted suet. It was probably a general name for several kinds of cement. Heineccius says that it was employed for sealing, but on what authority does not appear. See Beckmann, Hist. Inv. Vol. I. p. 141. Bohn’s Edition.