50 



BOVINE OBSTETBICS 



Harms, estimating the size of the diameter of exploration ; the 

 other by Arloing, who bases his calculations of the internal 

 pelvic dimensions on the distances between certain external 

 parts of the body. 



DIMENSIONS OP THE PELVIC INLET OF SOME COWS, EXPRESSED IN ' 

 CENTIMETERS. 



According to Harms' method, one measures with the palm 

 of the hand the distance between the anterior extremity of the 

 symphysis and the vertically opposite part of the sacrum ; the 

 width or transverse diameter to be estimated by the greater 

 distance between the ilia. Knowing the distance between the 

 expanded fingers, the height and width of the pelvis can be 

 ascertained. 



I practice pelvimetry according to this method as follows : 

 The cone-shaped hand enters the vagina. Palpation detects, 

 superiorly, the anterior promontory; inferiorly, the anterior 

 extremity of the ischio-pubic symphysis. Making a quarter 

 turn with the hand, one rests the little finger upon the anterior 

 extremity of the symphysis ; the other four fingers are closed 

 and the thumb is stretched out toward the roof; now one 

 attempts to touch the sacrum with the thumb without re- 

 moving the little finger from the symphysis. In this way the 

 height of the inlet is estimated. Following the linea innomi- 

 nata, the little finger is turned toward the right until the region 



