PRESIDENT'S ADDRESS. Iv. 



in 1900. Though greatly handicapped by infirm health , 

 he accomplished an immense amount of valuable work in 

 connection with the Geological Survey and otherwise, and 

 was the author of several books and many papers on Geology. 

 In connection with our Club he wrote more than one paper, 

 which are printed in our Proceedings, on the Physical 

 Geology of this county and the successive stages through 

 which the land had passed before arriving at its present 

 condition, one of his favourite subjects. I have to thank 

 him for help in various ways and Geological information, 

 and the Dorset Museum is also indebted to him. 



ZOOLOGY. 



The war at this time takes the first place in our thoughts 

 and actions, and I fittingly begin this part of my address 

 by a reference to the immense benefit conferred on our and 

 other troops at the front by the inoculation against typhoid, 

 which has been shewn by many experiences to be of the 

 utmost value as a protective agent. One of the most striking 

 instances is that of the American Army of 90,000 men, in 

 which it was made compulsory in 1911, with the consequence 

 that in 1913 there were only 3 cases of typhoid, all of which 

 recovered. It is to be hoped that it will before long be made 

 compulsory in our Army. A scientific report on the Michael 

 Sars expedition of 1910 is beginning to be published, and 

 will add much to our knowledge of the inhabitants of the 

 deep sea. 



A valuable synopsis of the species of British fleas, a group 

 which has previously been very little studied, has lately 

 been published by Hon. N. C. Rothschild, and a very curious 

 sexual phenomenon has been detected in the gall fly, 

 Neuroterus lenticularis , which, as well as other Cynipid gall 

 flies, has two generations in the year, one of parthenogenetic 

 females, and the other of males and sexual females. Mr. 

 Doncaster's experiments indicate that the grandchildren of 



