258 
FR. BLAZEKOVIC. 
anxiously, is disturbed in his whole circulation, and is on the verge 
of fainting and rupturing vessels. If the heart beats of such an 
animal be examined, its action would be startling. How many a 
good horse has fallen a victim to such irrational training ! 
The course of constitutional diseases and epizootics have 
partly incidental and partly characteristic heart diseases as a 
result. These are either by means of some toxical influence, or 
without it, the cause of heart diseases, which take a conspicuous 
part in casus-morbi, or after recovering from primary ailments 
more or less important forms of affection remain, which reduces 
the animal into a chronic decline. 
Such cases, especially as accompanying symptoms of anthrax, 
hemorrhage, typhus, influenza, haemorrhagic diathesis, pyaemia, 
haemoglobinuria, etc., are known to every practitioner. Occasion¬ 
ally in inflammation of lungs, diaphragm and intestines, heart 
affections can be noticed. 
The influence of dynamical powers, such as currents of air, 
atmospheric pressure, sudden changes of temperature, wind, rain, 
heat, etc., in short all those influences which produce diseases 
caused by taking cold, are not to be undervalued in the develop¬ 
ment of heart affections. 
The heart is, furthermore, exposed to manifold mechanical 
insults, trauma, and injuries from without. Sufficient cases in 
literature are known wherein wounding of the heart and pericar¬ 
dium from without were caused by foreign bodies from the 
stomach, such as swallowed nails, needles, and metallic pieces. 
Frequently concussions and direct injuries of the heart are pro¬ 
duced by pressure, shocks and collisions. 
The influence of temperature, not so much upon the genera¬ 
tion as upon the intensity and abatement of already existing 
heart affection, is generally known; however, I will return to 
this at another place. The examination of the different parts of 
the organs of the heart is absolutely necessary for the develop¬ 
ment of the genesis of heart disease. Every part of such organ 
is exposed to these affections according to the significance of its 
tissue for the organism which predisposes it for the reception of 
particular causes. Derangement of single parts of the heart is 
