V 



Hon by Dr. Michael Taylor, of Penrith, respecting milk-conveyed 

 infection, little was with certainty known on the subject, and Ballard 

 himself was (as he has told the writer) altogether sceptical as to any 

 real relation between the fever and the suspected milk-service. 

 Kevertheless, he set to work in his customary fashion to collect all 

 the facts for and against causation of the fever outbreak by means of 

 milk ; and, as a result, not only did he convince himself that in the 

 particular instance the suspected milk bad actually disseminated the 

 poison of enteric fever, but also he formulated in this connexion such 

 an array of circumstantial evidence as to afford to other minds pre- 

 sumption short only of absolute proof that the particular milk had 

 had chief concern in the outbreak. His report on the subject has 

 necessarily served as a model to later investigators. 



The limits of space proper for a " notice " such as this forbid any- 

 thing beyond mere attempt at indicating what sort of a man Ballard 

 was. The work that he did in afterdays under the Local Govern- 

 ment Board needs not to be set out. He will be known hereafter, as 

 has been well said of him by Simon, as one of the chief confirmers 

 and extenders of the sanitary science of his age; his researches on 

 effluvium nuisances, on food-poisoning, on infantile diarrhoea, on 

 epidemic pneumonia, and on a variety of matters etiological and 

 administrative, are duly recorded in the chronicles of the Medical 

 Officers of the Privy Council and Local Government Board. As 

 1 regards his work, official and post-official, in later years, it may be 

 remembered that much of it was done in defiance of increasing 

 bodily infirmity. Intellectually, Ballard remained ever young, and 

 bodily infirmity could not discourage or curb his efforts to master 

 the unknown. After retiring from office he continued, as a labour 

 of love, his researches into the etiology of diarrboeal disease, and he 

 left, under his will, the data thus accumulated by him to the Medical 

 Officer of the Local Government Board. On this subject he was still 

 working day by day when attacked by capillary bronchitis, which 

 proved fatal in the short space of two days. 



Ballard was destitute of personal ambition. He was content with 

 his work, and with appreciation of that work by those competent to 

 judge of it. He songht neither honours nor emolument. From 

 Government he obtained no honours at all ; and such recognition as 

 his work brought him from Medicine and from Science was but 

 tardily bestowed. 



W. H. P, 



Alexander Henry Green, M.A., F.R.S., F.G.S., Professor of 

 Geology in the University of Oxford, was born at Maidstone, 

 October 10, 1832. He was the son of the Rev. Thomas Sheldon 

 Green, formerly Fellow of Christ College, Cambridge, who at the 



VOL. LXII. C 



