STUDIES AMONGST AMCEIDE. 
233 
stationary and ragged-looking, and in the course of more than 
a day it split and separated into two halves. After this the 
vacuole disappeared, and the relics of the meal were jumbled up 
in the group of granules and other digested bits which streamed 
about in the endosarc. 
Anyone can see what has been just described, and the whole 
life-history of Amoeba can be followed with ease with ordinary 
appliances. If a young microscopist has satisfied himself that 
all that has been stated is true, he will stand in the same position 
with regard to myself that I do to a great many English and 
foreign observers. All that has been noticed in these studies 
will be found somewhere or other, and I found it most interesting 
and instructive to study the work of Dr. Wallich, in the “Annals 
and Magazine of Natural History,” for 1863. There the hairy 
Amoeba is admirably described, and christened Amoeba viilosa , 
and all its oddities are explained ; there the reciprocal nature 
of the endosarc and diaphane, the nature of the nucleus and the 
method of its sub-division, and indeed the exact morphology 
of the Amoebas is given to perfection. Carter, Carpenter, and 
Williamson have discovered and described much, and many 
species have been made and described by them and by learned 
Germans. One thing has struck me, and that is that there 
are two species of Amoeba only, and not a score. There is 
Amoeba viilosa, which is really a “ crowned head ” (figs. 38, 40). 
Then there is the other, which according to locality, time, 
season, food, and the eyes of the observer, changes its general 
shape and receives many names, but it is the common form 
at Hampstead, and is called Amcebaprinceps. It ought to be 
Amoeba communis , as it is plebeian to the regal Viilosa (figs. 
1, 2, 3, 7, 9, 10, 13, 21, 22, 30, 31, 40, 41). 
DESCRIPTION OF PLATES V. AND VI. 
The arrows point in the direction of movement during regular progression. 
Fig. 1. A large Amoeba with contractile vesicle, nucleus and much food. 
Figs. 2 and 7. A large and very active Amoeba (a peculiar stage). 
Fig. 3. Amoeba, comfortable, and full of food and large vacuoles. 
„ 4. An Amoeba with endosarc reaching edges of diaphane. 
„ 5. The same, with general shape changed. Nucleus shown., 
„ 6. Nucleus, nucleolus, and granule-spheres. 
„ 8. Commencing quiescence before encystment. Sarcoblasts of 
Wallich. 
„ 9. Amoeba with endosarc in the midst (a peculiar stage). 
„ 10. The same, assuming the normal shape. 
NEW SERIES, VOL. I. — NO. III. R 
