T O 



CAPT. DOUGLAS GALTON, C.B., F.R.S, F.R.G.S,, Ac., 



AS A TKIVUTE OF ESTEEM FOR HIS DISINTERESTED AND VSTLB1XO EFFOST8 

 THE CAUSE OF SANITARY SCIENCE AND THE PUBLIC WEAL. 



]jis f ittit Mark 



(WITH HIS KIND PERMISSION) 



IS RESPECTFULLY INSCRIBED. 





