106 



KANSAS UNIVERSITY SCIENCE BULLETIN. 



TABLE OF MEASUREMENTS. 



structure. 



Mid pith cell 



Marginal pith cell 



Medullary ray cell 



Wood fiber 



Fiber tracheid 



Tracheal tubes 



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-ovary, outer 



Cutinized portion epidermis-ovary, outer. . . 



Epidermis-ovary, inner 



Cutinized 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 stomatal 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 



Length, 

 0.03 to 

 .046 

 .05 



.022 



.05 



.06 



.015 



.015 



mm. 



0.046 

 .075 

 .075 

 .24 

 .26 

 .27 

 .114 

 .25 

 .12 

 .12 

 .15 

 .03 

 .03 



.06 

 .092 



Width, mm. 

 0.03 to 0.076 

 .01 .016 



.012 .014 



.01 

 .016 



.01 

 .075 



.015 

 .007 

 .008 



.016 



.03 



.025 



.016 



.016 



.06 



.013 



.007 



.02 



.012 



.105 



.075 



.06 



.013 



.065 



.015 



.045 



.01 



.02 



.0019 



.02 



.0019 



.015 



.0019 



.04 



.03 



.008 



.016 



.032 



.0325 



.15 



.045 



.02 



.015 



.015 



RAINFALL NEAR TUCSON. 



3 0.62 inch. 



15 05 " 



23 trace. 



Feb. 3 0.29 inch. 



.57 " 



trace. 



0.16 inch. 

 .47* " 

 .24t " 

 .15 " 



27 



* With snow. 



Apr. 23. 

 May 3. 



" 23. 

 July 5. 



" 7. 



" 10. 



" 13. 



" 15. 



" 16. 



" 17. 



" 19. 



" 23. 



" 25. 



" 27. 



01 " Aug. 2. 



With sleet and 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 " 



TEMPERATURE AT THE DESERT LABORATORY. 



Lowest. 



July 6 77° F. 



" 7 77 



" 8 74 



" 9 78 



" 10 78 



" 11 74 



" 13 71 



" 15 67 



" 16 69 



" 17 64 



Highest. 

 99° F. 

 103 



95 

 101 

 100 



97 



Lowest. Highest. 



July 18 65° F. 74° F. 



19 68 87 



20 75 96 



21 75 99 



22 75 94 



23 62 92 



24 65 90 



25 72 91 



26 62 92 



27 69 84 



