This photograph of a cow with ‘bush sickness’ illustrated a 1932 report on the illness. The wasting disease of animals was caused by a deficiency of trace elements in the soil – identified as cobalt in 1935.
Te whakamahi i tēnei tūemi
Te Ara – The Encyclopedia of New Zealand
Reference: L. I. Grange and N. H. Taylor, 'The distribution and field characteristics of bush-sick soils.' In Bush sickness 21-35. DSIR Bulletin 32. Wellington: W. A. G. Skinner, Govt. Printer, 1932, p. 30
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