21 



REPORT ON THE WORMS. 



By E. L. Mark. 



The collection of Worms has been increased since my last 

 report by a large number of species from the " Blake " expedi- 

 tion of 1878-79 to the Caribbean Islands, and a few specimens 

 have also been received from Mr. J. H. Blake. 



The work upon the collection has been limited to the care 

 necessary to prevent loss from evaporation of alcohol, my time 

 having been wholly consumed with lectures and laboratory work 

 on elementary zoology. 



The instruction given by me during the past year consisted of 

 three lectures per week, delivered to about eighteen students, and 

 the supervision of the laboratory work of the same students. 



