''ToStjl^i^n^] I>eej3-sea Protozoa, 35 
been detected by me. But I have also invariably found associated 
•with them, in greater or less quantity, certain cell-like masses, the 
average diameter of v^hich is about -^^ofin of an inch, on the imme- 
diate surface of which minute bodies were regularly arranged at 
intervals, so closely resemhling the free Goccohths in look and 
structure as to leave little doubt that the latter are given off from 
the former in some way." I add that "the association of the 
largest number of both of these kinds of bodies in the soundings 
in which the Glohigerinse were in greatest quantity and i7i the 
^purest condition, is worthy of notice, and is almost suggestive of 
their being the larval state of these organisms."* Again I state 
(p. 17) that, " in the nearly pure Globigerina deposits, there is no 
tenacity ("stickiness") whatever, the minute amorphous particles 
necessary for the production of the oozy quality being almost 
entirely absent. They therefore appear to the naked eye as mere 
aggregations of clean fine sand." 
Professor Huxley seems to have been unaware, from what he 
says in the fourth paragraph of his paper above referred to, that 
I not only " suggested " that the Coccoliths proceed from the Coceo- 
spheres, but most distinctly stated (in ' The Annals,' July, 1861, 
par. 2), that I found the Coccoliths occurring " as adjuncts to minute 
spherical cells, upon the outer surface of which they were adherent in 
such a manner as to leave no doubt of that being their normal posi- 
tion," This paper is accompanied by figures of the bodies under 
notice, and includes the following description : — " On reference to the 
annexed woodcut it will be seen that the composite bodies to which I 
allude, and to which I propose to give the name of Coccospheres, are 
minute spherical cells, having a defined limitary wall, and that upon 
their outer surface the Coccoliths are arranged at nearly regular in- 
tervals." Owing, however, to the delicacy of the structure and its 
minuteness, I had failed, at that period, to ascertain whether the 
wall of the cell is single or multiple, and also failed to trace the true 
double-disc formation of the Coccoliths which has very recently been 
pointed out by Professor Huxley, f and which I am now able to 
confirm in most respects. 
Professor Huxley describes, however, what he calls a " granular 
zone " as possibly constituting an integral portion of the Coccolith 
structure, and occupying more or less of the space intervening be- 
tween the two unequal-sized plates of which it is composed. 
Under none of the conditions in which perfect Coccospheres have 
been examined by me (and I have examined them in immense num- 
bers, both in a recent state and in the preserved material of the 
* Loc. cit, p. 14. Additional evidence of the relation between these bodies and 
the Foraminifera will be given hereafter. 
t In tlie paper already referred to as published in the ' Quarterly Journal of 
Microscopical Science,' Oct., 1868. 
D 2 
