106 



KANSAS UNIVERSITY SCIENCE BULLETIN. 



TABLE OF MEASUREMENTS. 



1. 



2. 



3. 



4. 



5. 



6. 



7. 



8. 



9. 

 10. 

 11. 

 12. 

 13. 

 14. 

 15. 

 16. 

 17. 

 18. 

 19. 

 20. 

 21. 

 22. 

 23. 

 24. 

 25. 

 26. 

 27. 

 28. 

 29. 

 30. 

 31. 

 32. 

 33. 

 34. 

 35. 

 36. 

 37. 

 38. 

 39. 



Structure. Length, 



Mid pith cell 0.03 to 



Marginal pith cell 045 



Medullary ray cell 05 



Wood fiber 



Fiber tracheid 



Tracheal tubes 06 



Tracheids 



Sieve cell 



Phloem parenchyma 



Stone cell 



Bast ( long ) 



Bast ( short ) 



Spongy parenchyma 



Palisade cells 



Epidermis, older stem 



Cutinized portion epidermis, old stem 



Epidermis flower branch 



Cutinized portion epidermis, flower stem 



Epidermis-ovai-y, outer 



Cutinized portion epidermis-ovary, outer 



Epidermis-ovary, inner 



Cutinizetl portion epidermis-ovary, inner 



Epidermis of anther 



Cutinized portion epidermis, antner 



Epidermis of petal, outer 



Cutinized portion epidermis-petal, outer 



Epidermis petal, inner 



Cutinized portion epidermis-petal, inner 



Upper stoma tal space 



Lower stomatal space 



Outer stomatal aperture 



Inner stomatal aperture 



Air space in sponge 



Mucilage cells 



Mucilage reservoirs 



Water storage cells 



Resinous gum cells 



Intercellular space, pith 



Intercellular space, sponge 



.03 



.022 



.05 



.06 



.015 



.015 



.03 



.03 

 .03 



0.045 



075 



075 



24 



25 



27 



114 



25 



12 



12 



15 



03 



03 



12 

 06 



045 



06 

 092 



Width, mm. 



0.03 to 0.075 

 .01 .015 



.012 .014 



.01 

 .015 



.015 



.01 

 .075 



.03 



.01 

 .02 



.025 



!06 



.03 



.015 



.007 



.003 



.015 



.03 



.025 



.015 



.015 



.06 



.013 



.007 



.02 



.012 



.105 



.075 



.06 



.013 



.065 



.015 



.045 



.01 



.02 



.0019 



.02 



.0019 



.015 



.0019 



.04 



.03 



.008 



.015 



.032 



. 0325 



.15 



.045 



.02 



.015 



.015 



RAINFALL NEAR TUCSON. 



Jan. 



Feb. 



Mar. 



3 



15 



23 



30 



3 



4 



7 



10 



11 



13 



22 



4 



19 



20 



26 



2'( 



With snow. 



0.11 inch. 

 .05 " 

 .03 " 



trace. 



0.04 inch. 



trace. 



0.80 inch. 



1.00 •• 



2.6 



.01 •• 



.61 " 

 1.81 •' 

 .02 " 

 .42 " 

 .42 '• 



With sleet and snow. 



TEMPERATURE AT THE DESERT LABORATORY. 



Lowest. Highent. 



July 6 77° F. 99° F. 



" 7 77 103 



" 8 74 99 



" 9 78 90 



" 10 78 95 



" 11 74 101 



" 13 71 100 



" 15 67 97 



•• 16 69 88 



" 17 64 82 



Lowest. Highest. 



July 18 65° F. 74° F. 



•• 19 68 87 



" 20 75 95 



'• 21 75 99 



•' 22 75 94 



" 23 62 92 



"24 65 90 



"25 72 91 



"26 62 92 



" 27 69 84 



