334 



DIFFERENTIATION AND SPECIFICITY OF STARCHES. 



THE MEAN TEMPERATURES OF GELATINIZATION OF VARIOUS STARCHES. 



The importance that lias been attached to differences in the temperatures of gelatiniza- 

 tion of starches, together witli the fact of the exceedingly contradictory records by different 

 investigators, and the reliability of the method used in this research, together with the 

 value of this means alone of differentiating starches, has suggested that a table stating the 

 mean temperature records recorded in this investigation would be found of special con- 

 venience and value. 



The Mean Temperatures of Gelalinization of Various Starches. 



Zea mays var. everta (Gulden Queen) 6.3.25 



Zea mays var. everta (White Rice) 63.25 



Zea mays var. indurata (North Dakota) 68.00 



Zea mays var. indurata (Compton's Early) 68.50 



Zea mays var. indentata (Early Learning) 66.50 



Zea mays var. indentata (Hickory King) 66.75 



Zea mays var. saccharata (Stowell's Evergreen).. 66.85 



Zea mays var. saccharata (Black Mexican) 65.00 



Zea mays var. saccharata (Golden Bantam) 66.50 



Andropogon sorghum var. (White Kaffr Corn).. . 68.00 

 Andropogon sorghum var. (Yellow Branching 



Sorghum) 70.00 



Andropogon sorghum var. (Shallu) 66.90 



Panicum crus-galli var 75.25 



Oryza saliva var 74.75 



Triticum sativum var. vulgare 64.00 



Triticum sativum var. dicoccum 62.90 



Secale cereale var. (Mammoth Winter) 61.00 



Secale cereale var. (Spring) 62.00 



Hordcum sativum var. (Champion) 61.00 



Avena saliva var. (Clydestlale) 63.00 



Arrhenatherum elatius var 60.25 



Vicia sativa 72.50 



Vicia villosa 66.00 



Vicia faba 65.00 



Vicia fulgens 72.00 



Vicia gerardi 71.00 



Phaseolus vulgaris var. (Red Kidney Bean) 74.50 



Phaseolus lunatus var. (Henderson's Bush Lima) . 79.75 



Dolichos lablab 79.50 



Mucuna pruriens 74.00 



Lens esculenta 72.25 



Lathyrus oiloratus var. shahzada 68.50 



Lathyrus sylvestris 58.00 



Lathyrus latifolius var. albus 63.00 



Lathyrus magellanicus var. albus 69.00 



Pisum sativum var. (Eugenie, Yellow) 73.60 



Pisum sativmn var. (Eugenie, Green) 74.50 



Pisum sativum var. (Thomas Laxton) 73.25 



Pisum sativimi var. (Electric Extra Early) 70.00 



Pisum sativum var. (Mammoth Gray Seeded) . . . 70.50 



Pisum sativum var. (Large White Marrowfat). . . 68.50 



Wistaria chinensis 71.50 



Arachia hypoga?a 66.50 



Polygonum fagopyrum var. (American) 63.50 



Polygonum fagopyrum var. (Japanese) 64.75 



Quercus alba 60.75 



Quercus muhlenbergi 63.75 



Quercus jirinus 64.75 



Quercus rubra 63.00 



Quercus texana 64.25 



Castanca americana 59.25 



Castanea sativa var. nunibo 60.00 



Castanea sativa var 6i.00 



Castanea jnimila 59.75 



jEsculuR hippocastanum 69.00 



Arum palffistimun 70.50 



Ai-um cornutum 70.00 



Arum italicum 72.00 



Arisiema triphyllum 70.00 



Dracunculus vulgaris 64.25 



Richardia clliotiana 76.00 



Richardia africana 75.00 



I Richardia albo-maculata 77 



I Dieffenbachia scguine var. nobilis (Pith) 69 



j Dieffenbacliia seguine var. nobilis (Cortex) 69 



; Dieffenbachia seguine var. maculata (Pith) 70 



> Dieffenbachia seguine var. maculata (Cortex) 70 



i Dieffenbachia seguine var. irrorata (Pith) 69 



Dieffenbachia seguine var. irrorata (Cortex) 68. 



Dieffenbachia illustris (Pith) 69 



Dieffenbachia illustris (Cortex) 70, 



Lilium candidum 61 



lilium longitlorum var. giganteum 62 



Lilium longiflorum var. eximium 65 



Lilium parryi 52 



Lilium rubellum 63 



Lilium philadelphicum 63 



Lilium tigrinum var. splcndens 62 



Lilium henryi 56 



Lilium auratum 58 



Lilium speciosum var. album 64 



Lilium martagon 59 



Lihum superbum 61 



Lilium tenuifolium 57 



Lilium pardalinum 63 



Lilium puberulum 62 



Fritillaria nieleagi'is 59 



Fritillaria p3'renaica 63 



Fritillaria pudica 49, 



Fritillaria aurea 02, 



Fritillaria armena 66, 



Fritillaria imperialis var. aurora 68 



Fritillaria liliacea 55 



Fritillaria rccurva 58 



Calochortus albus 53 



Calochortus mawcanus var. major 59 



Calochortus bcnfliami 01 



Calochortus lilacinus 59 



Calochortus nitidus 54 



Calochortus howcllii 50 



Calochortus leichtlinii 63 



Calochortus luteus var. oculalus 58, 



Calochortus splendens 55, 



Tulipa hageri 56, 



Tulipa sylvestris 57 



Tuhpa greigi 50 



Tulipa billietiana 55 



Tulipa didieri 50 



Tulipa didieri var. mauriana 50 



Tulipa didieri var. fransoniana 54 



Tulipa clusiana 57 



Tulipa clusiana var. persica 54 



Tulipa oculuB-solis 53 



Tulipa praecox 55 



Tulipa australis 51 



Scilla sibirica 66 



Scilla peruviana 65 



Scilla bifolia 64 



Chionodo^ia lucilia; 60 



Chionodoxa tmolusi 62 



Chionodoxa sardensis 61 



Puschkinia scilloides 56 



Puschkinia scilloides var. libanotioa 56 



Ornithogalum nutans 61 



Ornithogalum umbellatum 56 



50 

 00 

 00 

 50 

 60 

 .00 

 .75 

 60 

 .00 

 .65 

 .55 

 .60 

 ,60 

 .96 

 90 

 05 

 .00 

 60 

 .35 

 .10 

 60 

 30 

 30 

 .15 

 60 

 .15 

 .60 

 .75 

 .60 

 .40 

 10 

 .70 

 00 

 50 

 50 

 .00 

 76 

 .50 

 00 

 10 

 ,10 

 .90 

 15 

 30 

 .25 

 ,75 

 .95 

 .85 

 10 

 75 

 75 

 80 

 16 

 .00 

 .50 

 .76 

 .00 

 .35 

 .10 

 .35 

 70 

 .25 

 ,76 



