Table 13. — Dimensions of thrombocytes 



Breed 



Single Comb Wliite Leghorns . 



Average for group 



Single Corub Wbite Leghorns . 



Average for group. 

 New llanipsbires . . . 



Average for group 



Cohiinbian Plymouth Rocks. 



Average for group . 



Source 1 



RPL 6. 



RPL 15. 



Commercial . 



Commercial . 



Bird 2 



Cytosome 



Length 



Range , 



7. 0- 8. 5 



6. 6-10. 5 



7. 0- 8. 9 



7. 7- 9. 9 

 6. 7- 9. 5 

 6. 1- 9. 



8. 9-10. 8 

 7. 7-11. 5 

 7. 8-10. 4 



8. 3-10. 1 



6. 8-10. 9 



7. 4- 9. 5 



Average 



7.8 

 8.8 

 7.8 

 8.1 

 8.6 

 7.7 

 7.1 

 7.8 

 9.8 

 8.9 

 9.0 

 9.2 

 9.2 

 8.6 

 8.5 

 8.8 



Width 



Range m 



3. 1-4. 6 



3. 3-6. 1 



4. 3-5. 9 



Average 



1 RPL= Stock from the U. S. Regional Poultry Research Laboratory. ^ Measurements based on 10 cells per bird. 



4.1 



4.4 

 5.1 

 4.5 

 4.5 

 3.9 

 3.9 

 4.1 

 5.4 

 5.0 

 5.7 

 5.4 

 5.1 

 4.7 

 5.2 

 5.0 



Table 14. — Area and diameter of lymphocytes 



Breed 



Single Comb White Leg- 

 horns. 



Average for group 



Single Comb White Leg- 

 horns. 



Average for group. 

 New Hampshires ... 



Average for group. . . . 

 Columbian Plymouth 

 Rocks. 



Source ' 



RPL 6. 



RPL 15 . 



aercial . 



Average for group. 



Commercial . 



Bird 2 



Cytosome 



Area , 



Rang 



20. 5-102. 7 

 38. 5-105. 3 

 25. 7-118. 1 



38. 5-106. 6 

 30.8-118.1 

 25. 7-100. 1 



25. 7- 79. 6 

 15. 4- 53. 9 

 12. 8- 64. 2 



1 20. 5- 92. 4 



2 25. 7- 92. 4 



3 28. 2-110. 4 



Aver- 

 age 



49.7 

 61.1 

 53.2 

 54.7 

 65.5 

 48.7 

 43.5 

 52.6 

 39.4 

 37.1 

 30.4 

 35.6 

 42.8 

 50.7 

 69.1 

 54.2 



Diameter m 



Range 



5.1-11.4 

 7.0-11.6 

 5. 7-12. 3 



Aver 



7.8 

 8.7 

 7.9 

 8.1 

 9.1 

 7.7 

 7.3 

 8.0 

 7.0 

 6.8 

 6.1 

 6.6 

 7.3 

 7.9 

 9.2 

 8.1 



Nucleus 



Area m ^ 



12. 8-57. 8 

 23. 1-88. 6 

 20. 5-60. 3 



Aver- 

 age 



34.5 

 42.1 

 35.0 

 37.2 

 40.9 

 35.1 

 35.8 

 37.3 

 29.0 

 27.4 

 22. 1 

 26^2 

 28.8 

 32.8 

 39.1 

 33.6 



Diameter /i 



Ra 



4.0- 8.6 

 5. 4-10. 6 



5. 1- 8. 8 



4. 8- 7. 4 

 4. 0- 7. 

 3. 6- 7. 2 



4.4-7.9 

 5. 1- 7. 7 

 5. 1- 8. 3 



Aver- 

 age 



6.5 

 7.3 

 6.6 

 6.8 

 7.2 

 6.6 

 6.7 

 6.8 

 6.0 

 5.8 

 5.2 

 5.7 

 6.0 

 6.4 

 7.0 

 6.5 



' RPL = stock from the U. S. Regional Poultry Research Laboratory. 



'■ Measurements based on 25 cells per bird. 



213 



