208 University of California Publications in Zoology Vou. 9 
Nichols of the University of California, on the calcareous sea- 
weeds of the coast of southern California; four by Dr. C. M. 
> 
in the 
sand anemone Harenactis attenuatis; and studies well advanced 
Child of the University of Chieago, on ‘‘form regulation’ 
on endoparasites of fishes by Mr. W. E. Allen of the University 
of Ilhnois; on the circulatory system of anelids by Dr. H. R. 
Linville of Jamaica, N. Y.; on the so-called pyloric gland of 
ascidians by Dr. H. 8S. Colton of the University of Pennsylvania; 
on the problem of accessory chromosomes in chaetognaths by 
Dr. Nettie M. Stevens of Bryn Mawr; and on the endostyle of 
ascidians and amphioxus by Dr. David Marine of Western 
Reserve University, Medical Department. 
Since these investigations cannot be held to represent activi- 
ties of the station as these are now carried on, no resume of the 
results is given here. I cannot, however, refrain from mentioning 
‘ 
Child’s observations and reflections on ‘‘polarity’’ and correla- 
tion, particularly in connection with the development of what 
he calls ‘‘rings’’ from pieces cut out of the body of the anemone 
studied; nor from calling attention to Morgan’s proposal to 
make use of the repugnance to self-fertilization manifested by 
the ascidian under observation, for getting at the chemical basis 
of individuality. The brief paper by Miss Monks must also have 
something more than a mere mention. The remarkable variability 
of the starfish studied, and the unquestioned ability of its 
amputated arms to produce a complete animal even though the 
plane of severance is some distance from the disc, are facts of 
unusual interest and strongly invite further examination. 
Il. HYDROGRAPHIC 
Although as was stated in another connection, study of the 
water was from the outset counted as an essential part of the 
enterprise, little has yet been published of the very considerable 
amount of data collected. 
The preliminary paper by Dr. G. F. MeEwen (1910) con- 
tains a brief statement of the methods used, a very general sum- 
mary of water temperatures and densities observed up to 1909, 
and by way of generalization, a short discussion of the probable 
significance of colder in-shore surface water along this coast. 
