90 Natural Salvation. 



were the cells lining the food pocket or future stomach. 

 The labor being arduous, the metazoic consentience soon 

 detailed certain other groups, or tracts of cells, to aid those 

 of the stomach-sac ; and these afterwards developed vari- 

 ously as liver, pancreas, and other glands, great and small. 



Still others took up the work of passing the liquefied 

 pabulum to those other tracts or groups whose business 

 was locomotion or intelligent direction of the whole union 

 of cells ; and these in time developed as arteries, heart 

 and veins. 



But to be transformable to energy and carry on the 

 physical business of the co-partnership, oxygen was needed ; 

 the liquid food must be charged with oxygen ; and another 

 cell group took up the business of admitting external air 

 and infiltering oxygen. From this group has developed 

 pulmonary tissue. But nerve, brain and muscle cells ex- 

 crete waste products of the nature of poisonous refuse, to 

 such deleterious extent that another cell group assumed 

 the duty of extracting it from the circulation and washing 

 it away ; and from this tract of cells we have the renal 

 organs. 



Still there was complaint that the food was not good 

 enough, and another cell group, entering the sanguineous 

 current, undertook the task of still further refining and 

 vitalizing the plasma, now on its way to brain and mus- 

 cle ; and from these laborers for the common weal have 

 come the white and red blood-corpuscles. 



