'Crichton-Browne certainly had high hopes for the work [of Ferrier], writing excitedly to Darwin in April 1873 that Ferrier 'has discovered that every convolution of the brain is in direct relation with certain groups of muscles, and controls their actions', adding that the results will 'constitute the most important advances yet made in cerebral physiology' - such results, he believed, could not fail to interest Darwin.' (144)