By Cable to the Editor of The World:

     I am not aware of any specially important advance in science during the past year. As regards the science in which I am most interested, organic evolution, there has been during the last few years a steady advance toward obtaining a more extended basis for observation and experiment in connection with Darwin's theory of natural selection.

     Two workers of great merit in this line of research are W. L. Tower, of the University of Chicago, and Prof. E. B. Poulton, of Hope Museum, Oxford. Prof. Tower after five years of continuous experiment and observation published in 1906 a large volume, in which he demonstrated the action of natural selection in producing new forms. This is done by breeding insects on a large scale, as well as by the close study of living insects in a state of nature, under varying climatic environmental conditions.

     Prof. Poulton's work has been the systematic study of the whole range of phenomena of protective resemblance and mimicry. He has obtained for Hope Museum the first extensive collection ever made, especially to illustrate the phenomena of mimicry, which now is proved to be more important and wide-spread than heretofore suspected, and to be absolutely inexplicable on any other theory than that of continuous variation and the survival of the fittest.

London, Dec. 28.