JOURNAL OF MICROSCOPICAL SCIENCE. 
DESCRIPTION OF PLATES 
Illustrating Mr. J. Alder’s paper on New British Polyzoa. 
a PLATE II. 
ig. 
1.—A small portion of Cellepora ramulosa, highly magnified. 
2, 3.—Varieties of C. dichotoma, natural size. 
4.—A portion of the same, highly magnified. 
5.—C. levigata, natural size. 
6.—A portion of the branches of the same, magnified. 
7.—Lower part of the stem, more highly magnified. 
8.—Ovicells of the same, much enlarged. 
9.—Quadricellaria gracilis, Sars, natural size. 
10,—A portion of the same, highly magnified. 
11.—An ovicell of the same, much enlarged. 
12,—An avicularium of the same, enlarged. 
PLATE III. 
1.—Palmicellaria elegans, natural size. 
2.—The same, magnified. 
3.—A portion of the same, highly magnified. 
4.—A cell of the same, more highly magnified. 
5.-—E. lorea, natural size. 
6.—A small portion of the same, highly magnified. 
7.—An avicularium on the lower lip of the same, as seen from above. 
8,—E. levis, natural size. 
9.—A portion of the same, highly magnified. 
10,—An ovicell of the same, more highly magnified. 
11.—Outline of a small variety of E. levis, natural size. 
PLATE IV. 
1.—-E. Landsborovii, natural size, from Mr. Embleton’s specimen, now 
in the Newcastle Museum. 
2,—A portion of the same, highly magnified. 
3.—A cell of the same, with ovicell and avicularium, more highily 
magnified. 
4,—Scrupocellaria Delilii, natural size. 
5.—A portion of the same, magnified, front view. 
6.—Back view of the same. 
7.—A cell of the same, with ovicel], magnified. 
8.—A central avicularium, ditto. 
PLATE V. 
j.—Hornera| borealis, natural size. ; 
2.—A portion of the same, magnified, front view. 
3.—A small portion, more highly magnified. = 
4.—Back view of a portion of H. borealis, magnified. 
5.—A small-portion, more highly magnified. 
6.—An ovicell of the same, highly magnified. 
7.—An ovicell of H. frondiculata, highly magnified, 
