182 



INDEX 



Deficiency of sulphur, 56 



of zinc, symptoms of, in plants, 68-71 



of zinc in plants, 68-80 

 Demaree, J. B., 74 

 Dennis, A. C, 16, 80 

 Dennis, R. G. W., 3, 16, 80. 85, 89, 



114 

 Dent, K. W., 36 



Determination of aluminium in bio- 

 logical material, 48-9 



of cobalt in soil and plant material, 

 49-51 



of copper in ash, 41-4 



of manganese in ash, 33-7 



of molybdenum in ash, 48 



of nickel in soil and plant material, 

 49-51 



of zinc in ash, 37-41 

 Dewey, D. W., 51 

 Diagnosis of mineral deficiencies in 



plants, 51-6 

 Dickey, R. D., 67, 78 

 Die-back of apple trees, 89 



of fruit trees, 6, 74, 76, 90-4 

 Ditylum brightwelli, manganese neces- 

 sary for, 8 

 Dixon, J. K., 51, 146 

 Dore, W. H., 81, 122-3 

 Dothiorella, boron necessary for, 7 

 Drake, M., 121 

 Drought spot, 89 

 Dry ashing, 32 

 Dry spot, see Grey speck 

 Dryerre, H., 138, 145 

 Dufrenoy, J., 69-70, 101, 109-12 

 Dulin, T. G., 116 

 Dunlop, G., 140-1 

 Dunne, T. C, 93 



Eaton, F. M., 123 



Echinodermata, elements present in, 



124-5 

 Eden, A., 43-4, 142 

 Eisler, B., 43 



Electrometric titration of boron, 47—8 

 Ellidge, B. E., 31, 33, 41 

 Eltinge, E. T., 81-2 

 Elvehjem, C. A., 136, 144 

 Emerson, R., 101-2 

 Emmerie, A., 7 

 Enzootic ataxia, 139-42 

 Enzootic marasmus, 145-50 

 Estimation of aluminium in biological 



material, 48—9 



Estimation of cobalt in soil and plant 

 material, 29-51 



of copper in ash, 41-4 



of manganese in ash, 33-7 



of molybdenum in ash, 48 



of nickel, 49-51 



of zinc in ash, 37-41 

 Ettrick Shepherd, 145 

 Ewes, copper content of blood of, 142 

 Exanthema of fruit trees, 90-4 



Fats, relation of boron to, 121 

 Ferguson, W. S., 132, 135 

 Filmer, J. F., 146-7 

 Finch, A. H., 71-4 

 Fisher, P. L., 81 

 Flame spectra, 28-9 

 Flax, boron necessary for, 3 

 copper necessary for, 6 

 protective action of boron against 

 rust of, 123 

 Floyd, B. F., 91 

 Fluorine in animals, 124-5 

 Foster, J. S., 29, 44-5 

 Foster, J. W., 7, 8 

 Fowler, E. D., 74 



Fowls, manganese deficiency in, 143-5 

 manganese essential for, 127 

 selenium poisoning of, 127-8 

 Fox, H. M., 124-5 

 Franke, K. W., 128 

 French prune, copper deficiency in, 



90-1 

 Frenching of Citrus, 76-7 

 " of mu-oil tree, 67 



of tung, 67-8 

 Frey-Wyssling, A., 99 

 Fruit trees, deciduous, little leaf or 



rosette of, 74-6 

 Function of boron in plants, 98, 100, 

 113-23 

 of copper in animals, 150 



in plants, 99 

 of manganese in plants, 99 

 of zinc in animals, 150—1 

 in plants, 99 

 Functions of trace elements in animals, 

 150-1 

 in plants, 97-123 



Gaddum, L. W., 42, 139 

 Gall, O. E., 38 

 Gallagher, P. H., 61 



