No abstract. The following is taken from the introduction:
"Ttre health and productlon of the dalry cow 1s depend.ent
Opo-n--h-E_eftfcffi -tunebi€nln g o f many 1 n temaL a ted phy si o1 o gl cal
processes. For many years conslderable attention has been pald
to digestlon, absorptlon of nutrlents, eirculatlon of the blood,
utillsatlon of netabollc products, md excretion, It ls only in
recent years, however, that the irnportance of the endocrlne system
has been appreciated, and there still- renalns a large amount
of fundanental researcb to be carried out before a eornplete understanding
of the role of hornones wllL be obtalned.,"
