AN INTHODUCTION TO 

 PHYSIOLOGY AND MEDICINE. 



BIOPLASM. 



LECTURE I. 



Introductory — Of very Minute Living Particles — The 

 First Stage of Being of every Living Thing — Form, 

 Structure, Colour, Mechanism — Formation of the 

 living from the Non-living — Of Living, Forming, 

 Growing Matter, or Bioplasm — Protoplasm — Death 

 of Bioplasm — The Crystal, the Magnet, and the 

 Idving Thing — Piffereni hinds of Bioplasm — Origin 

 of Bioplasm — Changes in Bioplasm, and of its Con- 

 version into Tissue — Tissues at all Ages, in health 

 and, in disease, contain Bioplasm — Difference in 

 structure not due merely to variation of condition. 



1. Uninterrupted progress of Physiology. — l^o 



branch of natural knowledge exhibits such wondei'ful 

 and uninterrupted progress as physiology. Not only 

 is the superstructure being constantly added to and 

 altered at the same time, but the very foundations 

 are for ever being extended, improved, and renovated. 

 No wonder, then, that, in our anxiety to add to exist- 

 ing knowledge, we sometimes misjudge facts and 

 misinterpret phenomena. No wonder that observa- 

 tions regarded as very accurate at the time they were 

 made, afterwards prove to have been erroneous, or that 



B 



