SAP DENSITY AND FREEZING POINTS OF LEAVES. 
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Al. 
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Me a Te Te eee ay We, YOR GREE Sh Ie ee ee a ee 
125 
Degrees Centigrade 
Hydrangea quercifolia ..............eeeeees 0.9325 
Cercis canadensis .............0ssecureeees 0.87 
Viburnum Opulis sterilis ..................- 1.74 
Philadelphus gordonianus .................: 1.208 
OR VI US UCR lot coco la» ae ote ake MR oie wine 1.305 
PAV TUL See VET meememrrce ttle’ ain n't 6 fhe cere cee oree OPE 1.885 
DiTchy PALUSUDISmmer sein Ned ol. fee oe eee 0.957 
Symphoricarpos racemosus .........----+-++ 1.624 
Euonymus europaeus ........... eee ee ences 1.856 
TOG Ley ity BEE 7070 <select or ea Ten 
ZOUK OV Ag CLEUA LE asters eee te le cui ce via eh scree sue Ree) te 1.015 
Zanthoceras sorbifolia ...........-.-s2eeee> 1.16 
Cornus stolonifera ..........:. see eee eees 1.276 
Liquidambar styraciflua .........-.++.++0+- 1.131 
Pyrus japonica (no sap). 
Aesculus austrina (sunlight)............... 1.073 
Aesculus austrina (shade)................- 0.918 
VADURMUM dentate, jyce oie. eee 1.421 
MOS yUMIa SUSPeCNBA, wae sk ale Vee ee Re 1.073 
Halesia mtelranvenian ties tur cicttels piss mmareteates 1.208 
Spiraea bracteata .......... cece cece eee eeee 2.03 
@lgdrastis guiCvoMai «0... goes ob ne es oe 1.498 
Catalpa bignonioides ..............-.2.-e eee 1.044 
IDET VA] A eLOSCH AVL Mt eset cps don ce tee ee 0.87 
MaClora SUPANGIECR (ould. suis tie alec teas es 1.247 
Syringa vulgaris var. ........-+2s. eee e eee 1.74 
Acer platanoides (no sap). 
Fagus sylvatica purpurea..............++..-- 1.208 
Syringe persica gs cece ei tae 1.914 
Aesculus parviflora .........--.ceececceeees 1.131 
Aesculus Hippocastanum (no sap). 
Viburnum tomentosum ............2eeeeees 0.957 
Magnolia obovata discolor................4. 1.208 
CHEMO WLOUH ote se ss sie s ech ee ee ate td 1.45 
Chionanthus virginicus ..........+-eeseee: 1.015 
Hydrangea paniculata ............-+.-+05- 1.305 
Rhus cotinus atropurpureus...............- 1.208 
Viburnum Opulis sterilis................+-. 1.624 
Platamus occidentalis ...........--+sesseeee 1.302 
Quercus imbricaria (no sap). 
Pyrus arbutifolia (no sap). 
DRIENOLE AS OTUON 2 ee es et Oe nie j 0.741 
Euonymus Sieboldianus .................... 1.16 
Acer dasycarpum (no sap). 
