334 



DIFFERENTIATION AND SPECIFICITY OF STARCHES. 



THE MEAN TEMPERATURES OF GELATINIZATION OF VARIOUS STARCHES. 



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

 tion of starches, together with tlie fact of tlic exceedingly contradictory records by different 

 investigators, and the relialjility 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 in\estigation would be foimd of special con- 

 venience and value. 



The Mean Temperatures of Gelatinization of Various Starches. 



Zea mays var. everta (Golden Queen) 63.25° 



Zea mays var. everta (White Rice) 63.25° 



Zca mays var. indurata (North Dakota) 68.00° 



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



Zea mays var. indontala (Early Learning) 66.50° 



Zca 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) 60.50° 



Andropogon sorghum var. (White IvafTr Corn).. . 68.00° 

 Andropogon sorghum var. (Yellow Branching 



Sorghum) 70.00° 



Andropogon sorghum var. (Shallu) 66.90° 



Panicum crus-galli var 75.25° 



Oryza sativa var 74.75° 



Triticum sativum var. vulgare 64.00° 



Triticum sativum var. dicoccum 62.90° 



Secale ccreale var. (Mammoth Winter) 61.00° 



Secale cereale var. (Spring) 62.00° 



Hordeum sativum var. (Champion) 01.00° 



Avcna sativa var. (Clydesdale) 63.00° 



Arrhenathcrum elatius var 60.25° 



Vici^ sativa 72.50° 



Vicia villosa 66.00° 



Vicia faba 65.00° 



Vicia fulgens 72.00° 



Vicia geranU 71.00° 



Phaseolus vulgaris var. (Red Kidney Bean) 74.50° 



Phaseolus limatus var. (Henderson's Bush Lima) . 79.75° 



Dolichos lablab 79.50° 



Mucuna pruriens 74.00° 



Lens esculenta 72.25° 



Lathyrus odoratus var. shahzada 68.50° 



Lath3rus sylvestris 58.00° 



Latliyrus lafifohus var. albus 63.00° 



Lathyrus niagellanicu.s var. albus 69.00° 



Pisum sativum var. (Eugenie, Yellow) 73.50° 



Pisum sativum var.(Eugcnie, Green) 74.50° 



Pisum sativum var. (Thomas Laxton) 73.25° 



Pisum sativum 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° 



Araciiis hyijogoea 66.50° 



Polygonum fagopyrum var. (American) 63.50° 



Polygonum fagopyrum var. (Japanese) 64.75° 



Quercus alba 60.75° 



Quercus muhlenbergi 63.75° 



Quercus prinus 64.75° 



Quercus rubra 63.00° 



Quercus texana 64.25° 



Castanea americana 59.25° 



Castanea sativa var. numbo 60.00° 



Castanea sativa var 61 .00° 



Castanea pumila 59.75° 



jEscuIus hippocastanum 69.00° 



Arum palsestinum 70.50° 



Arum cornutum 70.00° 



Arum italicum 72.00° 



Arisa^ma triphyllum 70.00° 



Dracunculus vulgaris 64.25° 



Richardia elliotiana 76.00° 



Richardia africana 75.00° 



Richardia albo-maculata 77, 



Dieffenbachia scguine var. nobihs (Pith) 69. 



Dieffenbaciiia seguine var. nobilis (Cortex) 69. 



Dieffenbachia seguine var. macutata (Pith) 70, 



Dieffenbachia seguine var. maculata (Cortex) 70, 



Dieffenbachia seguine var. irrorata (Pith) 69, 



Dieffenbachia seguine var. irrorata (Cortex) 68 



Dieffenbachia illustris (Pith) 69 



Dieffenbachia illustris (Cortex) 70, 



Lilium candidum 61, 



LiUum longifiorum var. giganteum 62. 



Lihum longiflorum var. eximium 65, 



Lilium parryi 52, 



Lilium rubcllum 63, 



Lilium philadelphicum 63, 



Lilium tigrinum var. splendens 62 



Lilium henryi 56, 



Lilium auratum 58, 



Lihum speciosum var. album 64, 



Lihimi martagon 59 



Lihum superbum 61 



LUium tenuifoUum 57 



Lilium pardalinum 63 



Lilium puberulum 62, 



FritiUaria meleagris 69 



Fritillaria pyrenaica 63, 



FritiUaria pudica 49 



FVitillaria aurea 62, 



Fritillaria armcna 66 



F>itillaria impcrialis var. aurora 68 



Fritillaria liliacea 5, 



Fritillaria recurva 58, 



Calochortus albus 53, 



Calochortus maweanus vai'. major 59, 



Calochortus benthami 61, 



Calochortus hlacinus 59, 



Calochortus nitidus 54, 



Calochortus howellii 50, 



Calochortus leichtlinii 63, 



Calochortus luteus var. oculalus 58. 



Calochortus splendens 55, 



Tulipa hageri 56, 



Tulipa sylvestris 57, 



Tulipa greigi 50, 



Tulipa billietiana 55 



Tulipa didieri 50, 



Tulipa didieri var. mauriana 50, 



Tulipa didieri var. fransoniana 54. 



Tulipa elusiana 57. 



Tulipa elusiana var. persica 54, 



Tulipa oculus-solis 53, 



Tuhpa praecox 55, 



Tulipa australis 51, 



Scilla sibirica 66, 



Scilla peruviana 65. 



Scilla bifolia 64. 



Chionodoxa lucilia: 60. 



Chionodoxa tmolusi 62. 



Chionodoxa sardensia 61. 



Pusclikinia scilloides 56. 



Puschkinia scilloides var. libanotica 56. 



Ornithogalum nutans 61. 



Ornithogalum umbellatum 56. 



,50° 

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