BY H. s. HALCRO WARDLAW. ~>1< 



by Cullen (1917). The blood was taken from a vein in the 

 arm with a hypodermic syringe. The syringe was first washed 

 with liquid paraffin to hinder clotting during the withdrawal of 

 the sample. The sample was then ejected under a layer of 

 liquid paraffin on to a quantity of solid, finely ground potassium 

 oxalate equal to about 0.4 per cent, of the amount of blood 

 taken. The blood Avas then gently agitated to dissolve the 

 potassium oxalate. In this way the samples are obtained in an 

 unclotted condition without the addition of a liquid, which would 

 alter their dilution, and are exposed to a minimum of risk of 

 coming into contact with the air. It was sometimes necessarv 

 to compress the arms of the subjects to render the veins turgid 

 and to facilitate the insertion of the needle, but the compression 

 was removed, and the circulation allowed to resume its course 

 before the sample was withdrawn. Th'e cases of pneumonic 

 influenza from which the samples of blood were obtained were 

 all very serious, and many of them terminated fatally; all 

 showed distinct colouration of the skin. 



The following are particulars of cases from which samples of 

 blood were obtained: — 



2. A. S., male, 26, single, bricklayer. Admitted 2/4/19, died 

 is 4/19. Sample taken 16/4/19 (22nd day of disease), temperature 

 97.7°, pulse 110, respiration 40. 



4. D. M. B., male, 21, single, collector. Admitted 16/4/19, 

 died 22/4/19. Sample taken 22/4/19 (8th day of disease), tempera- 

 ture 103°, pulse 136, respiration 36. 



6. H. F., female, 11, scholar. Admitted 16/4/19, discharged 

 J 5/19. Sample taken 25/4/19 (10th day of disease), temperature 

 98.1°, pulse 92, respiration 25. 



7. W. R., male, 24, single, labourer. Admitted 26/4/19, died 

 6/5/19. Sample taken 1/5/19 (7th day of disease), temperature 

 102.8°, pulse 84, respiration 25. 



8. P. U., male, 24, single. Admitted 26/4/19, discharged 

 10/5/19. Sample taken 2/5/19, (9th day of disease), temperature 

 98.2°, pulse 77, respiration 29. 



9. A. C, male, 29, single, fitter. Admitted 2/5/19, discharged 

 30/5/19. Sample taken 5/5/19 (11th day of disease), temperature 

 98.6°, pulse 90, respiration 26. 



11. H. B., male, 27, married, carpenter. Admitted 6/5/19, 

 discharged 16/5/19. Sample taken 12/5/19 (11th day of disease), 

 temperature 99.3°, pulse 70, respiration 24. 



The particulars of cases 1 ,3, 5, and 10 were not obtainable. 



