The Association of Economic Biologists, 
These results are very interesting, but as might be expected when 
experiments are conducted in distant localities the problem is not 
easy to solve, as many factors have to be taken into consideration. 
The plotted results show, however, that there is a close 
agreement between latitude and sugar contents. In high latitudes 
the beets contain a high percentage of sugar and vice versa. 
As might be deduced from this variation with latitude, the sugar 
content decreases with increase of temperature. Another point, of 
considerable physiological interest, is that full sunlight and diffused 
light are apparently equally effective for sugar production, but 
that low sugar content is generally associated with short days, and 
high sugar content with long days. As also is known for some 
other plants, the actual quantity of rain which falls during a year 
has less influence on the plant than the manner in which it is 
distributed through the year. 
THE ASSOCIATION OF ECONOMIC BIOLOGISTS. 
Cambridge Meeting, January, 1907. 
HIS Association was founded in 1904 to promote and advance 
the science of Economic Biology in its agricultural, horti¬ 
cultural, medical and commercial aspects, the inaugural meeting 
being held in the apartments of the Linnean Society, London. 
Birmingham (the home of the Association), Liverpool, and lastly 
Cambridge have been the scenes of the subsequent gatherings. 
The Cambridge meeting was held on January 9th, 10th and 11th, 
1907, in the Lecture Theatre of the Pathological Department of the 
University, and the members were greatly indebted to the Medical 
Staff and to the authorities of Christ’s College for the kind arrange¬ 
ments made for their reception. 
Mr. A. E. Shipley, F.R.S. took “Sea Fisheries” as the theme 
of his Presidential address, and of the other fourteen papers pre¬ 
sented during the meeting, rather more than half were zoological, 
although several were of interest also to the Botanist, inasmuch as 
they dealt with various plant pests such as the black currant gall-mite, 
grain weevils and a scale disease of the olive. 
o 
Mr. R. H. Biffen gave a summary of some of the interesting 
and important results of the work on cereal breeding conducted by 
the Agricultural Department of the University. The paper was 
