Last Work. Iinai. Honors 633 



exception. The first Ja) the Rrierleys gave a tea and a dinner in 

 tlieir honor, and the next evenins: they had dinner at tlie home of 

 Sir John Russell, the director. On one occasion Dr. Smith spoke to 

 a company of about twenty men and women. They stayed at the 

 home of Dr. Cutler, a Cambridge University protozoologist who 

 was studying the micro-fauna and micro-flora of the region. 



In the morning Smith, Brierley, and a young student from 

 Geneva, Switzerland, strolled around the experiment station 

 grounds and the village. Along with the hundreds of acres under 

 cultivation. Smith saw the manor house of Sir John Lawes who 

 had given the land on which the great English institution had 

 been established.- Leading to the manor house was a beautiful 

 avenue of lime trees, and they passed through woodland to the 

 famous wheat fields which, though cultivated for eighty years or 

 more, were still yielding good harvests. Brierley and he talked 

 some of plant diseases, among the topics being a canker disease 

 prevalent in England and the results of preventive experiments 

 against potato wart. 



In the afternoon Smith visited the laboratories and saw several 

 things of greater or less definite interest: laboratory cultures of 

 soil algae and soil protozoa; a method of staining bacteria in soil 

 without staining the humus compounds, " Winogradsky's new 

 method "; slides of soil showing a stained coccus form of the 

 nitrogen-fixing organism which was believed to change develop- 

 mentally (or culturally) into other forms; a simple and rapid 

 device for testing lethal doses of various insecticides; and, among 

 still other points, he learned of ^^- " Colpodium colpoda ... a 

 single celled mononeucleate organism " which he believed " might 

 be good for some crown-gall experiments." Dr. Cutler had experi- 

 mented with these organisms which " feed on bacteria in the soil 

 [and] accustomed them to take their carbon from glycerine and 

 their nitrogen from ammonium sulphate." 



On April 8 Dr. and Mrs. Smith returned to London to attend 

 another dinner given in his honor by Dr. Brierley, this time at the 

 Criterion Restaurant in Piccadilly Circus. Those present were Dr. 

 E. J. Butler, English pathologist; Dr. J. Ramsbottom, mycologist 

 at the Kew Gardens; Dr. F. T. Brooks, plant pathologist of 

 Cambridge University; Fernand Chodat, the young botanist from 

 Switzerland; Dr. Ernest S. Salmon, Smith, and Brierley. 



"* Journal, Apr. 7, 1925. 



