THE ZOOLOGICAL STATION AT NAPLES. 481 
cesses are thrown out from the surface of the periblast, and from the tips 
of these processes are budded off corpuscles which enter the heart and the 
circulation. These processes have been noticed by several authors, among 
others by Ryder. I have been able to observe these processes in the eggs 
of seven species. The eggs of the Murenide, from their large size, offer 
facilities for the study of this process of budding, and in these eggs the 
different stages have been successfully followed. The process is very 
slow, and may easily be overlooked. In the other species, the ova of 
which are small, the presence of the pseudopodial processes was noted. 
In these, unless a large number of eggs is obtainable, it is almost impos- 
sible to follow the actual budding off of the corpuscle. The corpuscles 
derived from the process of budding do not appear to differ from the 
primary corpuscles derived from the periblast. They are irregular in 
shape and size, and show, at least in some cases, nuclei. There is thus, 
previous to the advent of ‘the blood circulation, a circulation of corpuscles 
derived from the periblast in two ways, (1) by simple direct transference 
from the surface of the periblast ; (2) transference by means of a process 
of budding. 
That the processes mentioned above are general I am led to believe ; 
but I have not yet had the opportunity of examining a sufficient number 
of species to enable me to make a generalised statement. 
+ Other points in development, which occupied my attention at Naples, 
I must leave over until I have had an opportunity of continuing my 
observations. 
Any reference on my part to the advantages afforded by the Zoological 
Station at Naples is quite uncalled for. This subject has more than once 
been treated by zoologists more competent to judge thanI am. To me 
the opportunity given by the Committee of the British Association to 
occupy the Table at Naples has been of incalculable value, and my sincere 
thanks are offered for the honour so done me. 
Il. A List of Naturalists who have worked at the Zoological Station from 
the end of June 1895 to the end of June 1896. 
Num- State or University Duration of Occupancy 
ber on Naturalist’s Name whose Table 
List was made use of Arrival Departure 
857 | Prof. F. S. Monticelli | Italy ‘ 2 . | July 6,1895| Nov. 4, 1895 
858 | Prof. J. Ogneff . . | Russia. : 5 39 BOs, Waren Te ess 
859 | Prof. V. Faussek ; 53 , F Jel, Seer =sabel ye — 
860 | Dr. F. Massa . . | Italy 5 3 ‘ pire awry soNtoniss dle tos 
861 | Stud. V. Diamare . a ‘ 3 - shales — 
862 | Dr.G. Mazzarelli . oF = : : Sor aniline — 
863 | Dr. A. Romano. A 3 2 ‘ a PAPER CH or, ee 
864 | Dr.G.Salvi . a : é 5 Dams) sar eh ipepo.LOs,, 
865 | Prof. A. Della Valle . By Z F i Sa de ss Oct. 18, 
866 | Mr. H.Ch.Williamson | British Association . Seale os July 16, 1896 
867 | Stud. W. Daudt .| Hesse . » 24, 4, | Nov. 15.1895 
868 | Dr. N. Germanos . | Zoological Station s Sept 2, 5 i 10, mA 
869 | D.J.Wagner . , Russia 4 f We Eee ilar, 15,1896 
870 | Prof. B. Grassi . . | Italy : i : 3 14, ,, | Oct. 20,1896 
871 | Dr. F. Savorani . | Italian Navy . ; eas 5 as Se MD si ¢ 
872 | Mr.J.S.Gardiner .| Cambridge . OC wee Feb. 13, 1896 | 
873 | Dr. T. Reibisch. .| Saxony . : : bf ee RE itl4Aueih Al 
874 | Dr. G. Schischko . | Bulgaria. , 7 octet a Apa — 
875 | Dr. C. Apstein . . | Prussia . : i Spee hay een ears (Goin 
1896. II 
