HAMIIvTON SCIENTIFIC ASSOCIATION 67 



frequentl)^ there is to be seen quite unmistakable evidence of 

 lung trouble in early life, wWch has been successfully 

 eradicated. Such evidences are to be seen in the form of 

 local thickenings of the pleura, thickenings of the septa 

 betvv^een the lobes, tiny gritty particles like grains of sand 

 here and there, and in other cases pigmented scars showing 

 at one time loss of tissue. 



These evidences are found with variable frequency 

 according to various observers, some pathologists finding 

 them as often as in i in 3, others i in 5, others i in 7 of all 

 deceased coming to the post mortem table. 



Furthermore, there is abundant testimony in all these 

 cases, even the ones which succumbed to tuberculosis, that 

 the tissues waged a persistent warfare against their foes, and 

 only failed in those instances where they became handicapped 

 as a result of interference with their nutrition. 



In fact the whole rationale of the once much vaunted 

 Cod lyiver Oil treatment, of the fresh air, sunlight, rest and 

 good food treatment, lies in the belief that by means of them 

 the resistance of the tissues is so heightened and reinforced 

 that they are enabled to supply additional energy or 

 combative force against the bacilli and their injurious toxins, 

 so that they are either killed, rendered inert, or removed 

 together with the tissues destroyed by them. 



There are still two other methods by which the bacilli 

 may be transported from the first point of entrance to other 

 parts of the body, each of which is of considerable importance 

 in every case of chronic or acute tuberculosis, namely, the 

 lymphatic system and the vascular system. 



Between the cells of the tissues, and especially around 

 the blood vessels, more particularly the small capillaries, 

 there is a network of spaces which have been likened to the 

 pores of a sponge. These spaces interlace and communicate 

 with one another in such a way that there is always a free 

 circulation of lymph bathing every living tissue. Such 

 spaces pour their contents into small definite tubes or canals, 

 . which in turn lead to vessels of some considerable size with 



