180 



INDEX 



Beet, boron deficiency in, 82 

 copper deficiency in, 94 

 heart-rot of, 57, 83-4 

 speckled yellows of, 63-4 

 sugar, calcium-boron balance in, 121 

 leaves and roots, manganese content 

 of, 64 

 Belvoussov, M. A., 84 

 Bennetts, H. W., 140-2 

 Berenblum, I., 26 

 Bertrand, G., 2, 7, 102-3 

 Beta maritima, see Garden or red beet, 



Sugar beet, Mangold 

 Bishop, C. J., 7 

 Bishop, W. B. S., 101 

 Black spot, internal, of red beet, 84-5 

 Blood of ewes, copper content of, 142 

 Bobko, E. V., 84 

 Boron deficiency diseases, 80-9 



determination of, in plant material, 



44-8 

 function of, in plants, 98, 100, 113-23 

 relation of, to carbohydrate and fat 



metabolism, 121 

 species requiring, 16-18 

 as micro-nutrient, 3 

 content of plants, 44 

 in animals, 125 

 Boron-calcium ratio in plants, 120-1 

 Bortels, H., 7, 23 

 Brandenburg, E., 84, 95 

 Brassica spp., effect of boron deficiency 



on, 81-2 

 Brenchley, W. E., 80-1, 115-16 

 Broccoli, effect of boron deficiency on, 



81-2 

 Bronzing of tung, 77-8 

 Brown heart of apples, 89 



of swede and turnip, 85-6 

 Brown-spotting of apricots, 89 

 Browning of cauliflower, 86-7 

 Brussels sprouts, effect of boron de- 

 ficiency on, 81-2 

 Bryan, O. C, 138 

 Buckwheat, boron necessary for, 3 

 chlorine necessary for, 4 

 zinc necessary for, 3 

 Buds, apical, effect of zinc deficiency 



on, 70 

 Burrell, A. B., 89 

 Burrows, F. W., 68 

 Burstrom, H., 102-3 

 Bush sickness, 139, 145-50 

 Byers, H. G., 128-30 



Cabbage, boron deficiency in, 82 

 Cadmium in animals, 124-5 

 Calcium, effect of, on absorption of 

 boron, 119-20 

 effect of, on absorption of man- 

 ganese, 107—9 

 effect of boron on absorption of, 



114-21 

 effect of manganese on absorption 

 of, 107-9 

 Calcium-boron ratio in plants, 120-1 

 Calfee, R. K., 8, 45 

 Callan, R., 42 

 Camp, A. F., 3, 77-8 

 Canker of red beet, 84-5 

 Carbohydrate metabolism, relation of 

 boron to, 121-3 

 relation of zinc to, 109-10 

 Carbonic anhydrase, 112, 150-1, 154 

 Came, W. M., 89 

 Carya olivaeformis, see Pecan 

 Caskey, CD., 144-5 

 Castor-oil plant, boron necessary for, 3 

 Catalysts for oxidation-reduction re- 

 actions, 99, 109-13 

 Catalytic function of trace elements, 



98-101, 112-13, 153-4 

 Catechol oxidase, 110-13, 154 

 Cations, effect of boron on absorption 

 of, 114-21 

 effect of manganese on absorption of, 

 107-9 

 Cattle, cobalt deficiency in, 145-50 

 cobalt essential for, 127 

 copper deficiency in, 136-9 

 scouring of, 127 

 selenium poisoning of, 127-9 

 Caughley, R. H., 40 

 Cauliflower, boron deficiency in, 86- 



7 

 Celery, boron deficiency in, 87 

 Ceratostomella Ulmi, micro-nutrients 



for, 8 

 Cereals, copper deficiency in, 94-6 

 Chain, E., 26 

 Chandler, F. B., 81 

 Chandler, W. H., 68, 74-7, 110 

 Chapman, F. E., 141-2 

 Cherry, effect of zinc deficiency on, 74 

 Chick, manganese deficiency in, 143-5 



manganese essential for, 127 

 Chittenden, E., 89 



Chlorella, effect of trace elements on, 

 8, 12, 101 



