PHENOMENA OF "SKIN MARKING" 213 



sequence, viz. the, so-called, malignant endocarditis, we 

 observe, the invasion of the cerebro-spinal cavity with the 

 germs of the pneumococcus, the subsequent invasion by 

 continuity, through the neurilemmar passages, and inter- 

 spaces of the pneumogastric nerves and structures of the 

 heart, and the growth there of broods of the microbe, 

 originally reared in the medium of the cerebro-spinal 

 fluid. We might cite other instances, but let this suffice 

 to attract that notice which, we contend, the intrinsic 

 value of the subject, in enabling us to affiliate and 

 differentiate morbid entities, entitle it to. 



Moreover, we are convinced, so far as our application 

 of this key, to the opening up of new problems, has 

 enabled us to do, that a great future is in store for its 

 study, in clearing up many obscure and impenetrable 

 regions of seemingly disconnected, but related, morbid 

 phenomena, and indicating a more scientific, and less 

 empirical, manner, of their treatment, preventive, curative 

 and ameliorative. 



Furthermore, here we find, ready to hand, a rational 

 explanation of the paradoxical phenomena of metastasis 

 and kindred pathological occurrences so frequently to be 

 met with in the experience of every clinical observer. 



