10 ANNUAL EEPORT OF THE 



Owing to delays in the reproduction of plates, the papers by 

 Dr. Hall, Dr. Breed, Mr. Sargent, and Mr. Lander have not ap- 

 peared, but they are nearly ready for distribution. 



In June, 1903, the degree of Doctor of Philosophy was con- 

 ferred on Amos W. Peters, whose thesis was on " Metabolism 

 and the Reaction of Division in Protozoa." Dr. Peters has 

 been appointed Instructor in Zoology at the State University of 

 Illinois. 



Professor Parker, besides devoting much time and energy to 

 editorial work, has prepared two papers which have been issued 

 as numbers 138 and 143 of the Contributions. Dr. Castle has 

 published two papers on an important subject, heredity, and has 

 shared in the authorship of a third. These, too, have appeared 

 in the Contributions, being numbers 136, 137, and 142. It is a 

 pleasure to note in this connection the promotion of Dr. Castle to 

 Assistant Professor of Zoology. 



Dr. C. W. Prentiss, who has held for two years a Parker Fel- 

 lowship, has been carrying on his studies at the Naples Station 

 and at the University of Strassburg, and has published the fol- 

 lowing papers : u Ueber die Fibrillengitter in dem Neuropil von 

 Hirudo und Astacus und ihre Beziehung zu den sogennanten 

 Neuronen. Arch. f. mikr. Anat., Bd. 62, pp. 592-606, Taf. 26 

 Juli, 1903 ; The Neurofibrillar Structures in the Ganglia of the 

 Leech and Crayfish, with especial reference to the Neurone The- 

 ory. Jour. Comp. Neurol., Vol. 13, No. 3, pp. 157-175, pis. 5, 6. 

 October, 1903. He has been appointed to a position in Adelbert 

 College, Western Reserve University, to do the work of the Pro- 

 fessor of Zoology during a year's leave of absence. 



The Virginia Barret Gibbs Scholarship for 1902-03 was held by 

 Mr. Austin P. Larrabee, a graduate of Bowdoin College. 



Nine instructors and advanced students carried on work at 

 Wood's Hole during the summer of 1903, eight at the U. S. Fish 

 Commission Laboratory, and one, as holder of a Carnegie Table, 

 at the Marine Biological Laboratory, Wood's Hole. Of these, 

 eight have received aid from the Humboldt Fund aggregating 

 $160.71. 



Through the interest and generosity of a few friends of the 

 department, money was secured for the construction of a small 

 number of aquaria, both for salt water and fresh water. These 

 are each five feet long, and are located in the basement room, 

 wholly above ground, under the zoological laboratories. The water, 



