OF WASHINGTON. 353 



In 1880 the Government was conducting an investigation of 

 the cotton worm in the South, and, taking advantage of Hubbard's 

 Southern residence, Riley was glad to utilize the services of so good 

 an observer and appointed him a special agent of the United States 

 Entomological Commission. During the summer of that year 

 Hubbard studied cotton insects in the cotton fields of Florida, 

 Georgia, and Alabama, and many of his results were incorporated 

 in short articles in Volume III of the " American Entomologist" 

 and in the subsequent report of the Commission. In iSSi an in 

 vestigation of the insects affecting the orange was begun by the 

 Department of Agriculture and this work was assigned princi 

 pally to Hubbard. During the next two or three years he devoted 

 himself to this investigation. He almost immediately succeeded 

 in producing for the first time a practical kerosene emulsion which 

 has since become the principal standard remedy for haustellate 

 insects. The standard kerosene soap emulsion formula is now 

 known as the Riley-Hubbard formula. His work on orange in 

 sects was carried to a most successful conclusion and the " Report 

 on Orange Insects," published by the United States Department 

 of Agriculture in the spring of 1885, is founded entirely upon his 

 original observations. Of this work so eminent a horticulturist 

 as the late William Saunders said: " It is the best report which 

 the Department ever published." 



After the completion of this volume his attention became more 

 and more diverted from entomology to advanced horticulture. 

 His father's desire was to transform the Crescent City place into 

 a model semi-tropical garden. He gradually in this work built 

 up a most interesting place and became the horticultural oracle 

 of central Florida. The Hubbard place became a Mecca for 

 horticulturists and the agricultural newspapers contained many 

 horticultural papers from his pen, but few entomological papers 

 were published until 1892. He not only superintended all of the 

 work on the place but took an active part in it. It was during 

 the excavation of certain drainage canals that he contracted the 

 disease which finally resulted in his death. In 1887 he married 

 Miss Kate Lasier, of Detroit, and four children were born to 

 them. 



Finally, in 1889, ms entomological yearnings gained control 

 and he again visited Lake Superior, the scene of his early field 



