It must be admitted, that this conjectural explanation is liable to very considerable difficulties; for, although the converse operation of taking an impression from a liquid surface has a parallel in the art of marbling paper, the possibility of transferring the ink from the copper to the fluid requires to be proved.
"On the Economy of Machinery and Manufactures"
Charles Babbage
It matters not whether we regard the bands between the lobules or the varying shades of the lobules themselves as the marbling, provided either or both are peculiar to contagious pleuropneumonia.
"Special Report on Diseases of Cattle"
U.S. Department of Agriculture J.R. Mohler
Some authorities are inclined to consider these variations in color on the same cut surface as the so-called marbling of pleuropneumonia.
"Special Report on Diseases of Cattle"
U.S. Department of Agriculture J.R. Mohler