By introducing an Embryotomy knife in the palm of the hand and cutting through the muscle of the diaphragm the interior of the chest can be reached in the same way and the heart and lungs removed.
"Special Report on Diseases of Cattle"
U.S. Department of Agriculture J.R. Mohler
The abdomen can be cut open by the Embryotomy knife or the long embryotome in the median line, or at any point, and the contents pulled out with the hand, the knife being used in any case when especial resistance is encountered.
"Special Report on Diseases of Cattle"
U.S. Department of Agriculture J.R. Mohler
These cases are always trying, but it is very rarely necessary to resort to Embryotomy.
"Special Report on Diseases of Cattle"
U.S. Department of Agriculture J.R. Mohler