518 



SCIENCE 



[N. S. Vol. XXX. No. 772 



C. W. Hargitt, professor of zoology, Syracuse 

 University. Embryology of the ccelenterates. 



George T. Hargitt. Embryology of Clava and 

 Aurelia. 



J. S. Kingaley, professor of biology, Tufts Col- 

 lege. Comparative anatomy of vertebrates. 



Frederic S. Lee, professor of physiology, Colum- 

 bia University, and Max Morse, instructor in 

 natural history. College of the City of New York. 

 The phenomena of summation of stimuli in vari- 

 ous invertebrates. 



Charles S. Mead, instructor in zoology, North- 

 vpestern University. Structure of Verrill's " Dino- 

 philus simplex." 



T. H. Morgan, professor of zoology, Columbia 

 University. The effects of centrifuging the eggs 

 of Cerebratulus. 



H. V. Neal, professor of biology, Knox College. 

 The histogenesis of the eye muscle nerves in 

 4.oanthias. 



Harley J. Van Cleave, graduate student in the 

 University of Illinois. The cell lineage of Cere- 

 bratulus. 



Leonard W. Williams, instructor in compara- 

 tive anatomy, Harvard Medical School. The an- 

 atomy of Myxine. 



During the summer seminars were held 

 weekly, with extra meetings several times. At 

 these times members of the laboratory and 

 visitors presented the results of their recent 

 work or made statements of the condition 

 and progress of their special fields. Among 

 these talks were the following: 



Frank S. Collins : " Certain Problems in the 

 Geographical Distribution of the Marine Algae." 



Ulrie Dahlgren : " The Development of the Elec- 

 tric Organs in the African Genus Gymnotus." 



Bashf ord Dean : " The Embryology of the Lower 

 Fishes and its Bearing on the Validity of the 

 Biogenetic Law." 



Herbert S. Jennings : " Recent Experiments on 

 the Causes and Meanings of Conjugation in Para- 

 moeoium." 



J. S. Kingsley: "Recent Evidence Bearing on 

 the Origin of Mammals." 



F. D. Lambert : " The Life History of an Unde- 

 scribed Genus of Chlamydomonads." 



Frederic S. Lee: "The Phenomena and Causes 

 of Fatigue." 



1*'. B. Loomis: "Fossil Hunting in Sioux Counh 

 Nebraska." 



C. S. Mead : " The Chondrocranium of the Pig." 



Charles S. Minot : " Recent Researches on the 

 Morphology of the Blood." 



T. H. Morgan : " Heredity of Hair Color in 

 White Mice." 



Max Morse : " Rhythmical Pulsations in the 

 Umbrella of Aurelia and Cyanea. The Determina- 

 tion of Sex." 



Leonard W. Williams : " The Primitive Seg- 

 mentation of the Mesoderm and the Origin of the 

 Sclerotomes in the Chick." 



Frederick A. Woods : " The Evidence Bearing 

 on the Question of Modifications as the Results of 

 External Conditions." 



HONORARY DOCTORATES CONFERRED BY 

 HARVARD UNIVERSITY 



On the occasion of the inauguration of Dr. 

 A. Lawrence Lowell as president of Harvard 

 University, honorary degrees were conferred 

 on thirty delegates. Those on whom the de- 

 gree of doctor of science were conferred and 

 the characterizations of President Lowell 

 were as follows: 



William Napier Shaw, eminent in the new 

 science of meteorology; welcome delegate from 

 John Harvard's college, and from the ancient uni- 

 versity whose sons bore the sacred fire of learning 

 to a new England. 



John Chbistopheb Willis, also a delegate from 

 the University of Cambridge; an eminent botan- 

 ist, remarkable for his knowledge of tropical vege- 

 tation; director of the Royal Garden in Ceylon; 

 who has done a great work in improving tne varie- 

 ties useful to men. 



John Harvard Biles, delegate from the Uni- 

 versity of Glasgow; professor and master of naval 

 architecture on the Clyde, where fleets are built 

 that carry the commerce of the world. 



Hector Frederick Estrup Jungersen, delegate 

 from the University of Copenhagen; professor of 

 zoology and director of the Zoological Museum; 

 heir of an ancient and virile race, who has en- 

 riched modern science by his profound studies of 

 reproduction and development in fishes. 



George Alexander Gibson, delegate from the 

 University of Edinburgh; physician and professor 

 of medicine; a clear and prolific writer; investi- 

 gator of the action of the heart; distinguished 

 teacher in a school long famous, where founders 

 of our own medical school were trained more than 

 a hundred years ago. 



Jacobus Cornelius Kaptetn, director of the 

 Observatory of Groningen; astronomer and organ- 

 izer of scientific work; fit representative of a 

 strong race, alreadj' glorious in arms, in art, in 

 learning and in adventure. 



