120. Bibliographical Notices. 
ficult to obtain; because the monkeys live here, which are under 
the special protection of the English, who have set a great fine upon 
any one who should take or kill one of these animals. Scilla hemi- 
spherica occurs also on boulders, but less beautiful and rarer than 
on the original walls. On shady boulders and in rocky clefts, as 
well as along the narrow comb of the summit, Cerastium gibraltari- 
cum, Boiss., is very frequent. Also, on the rocky walls of the eastern 
acclivity, grow Reseda alba, L., Antirrhinum majus, L., and especially 
on the north-eastern rocks, Savifraga globulifera, Desf., 3. gibral- 
tarica, Boiss., which is only now beginning to shoot forth its buds. 
Upon boulders blossom Veronica cimbrolaria, Badara, very rare Se- 
necio minutus, DC., in fine large specimens, Hrodium moschatum, L., 
and under bushes 4theorrhiza bulbosa, Cass., and Smilax mauritanica, 
. Desf. The rock-walls of the eastern acclivity descend toward the 
Punta de Europa straight down into the sea, whilst those of the 
northern valley descend to only half the height of the mountain, 
and here join on to a steep slope consisting of boulders and drift- 
sand, which extends down to the shore. On these slopes grow 
Ononis gibraltarica, Boiss., in great profusion, which unfortunately 
was not yet in blossom, besides Silene gibraltarica, Boiss., in the same 
state, and several other species of this genus: also in the drift-sand 
Erodium laciniata, Cav., Uropetalum serotinum, Ker., a small form of 
Picridium tingitanum, Desf., Linaria pedunculata, Spr., and the pretty 
L. amethystea, Lk. Hoffm., var. albiflora, Boiss., with white flowers, 
yellow palate, and violet-spotted lower lip. 
On the isthmus of Gibraltar, a naked sandy plain full of nume- 
rous salt lakes, which separates the limestone rocks of Gibraltar 
from the sandstone hills of S. Roque, are found few plants, but some 
rare species. On the downs grows Schenus mucronatus, L., in great 
abundance, more rare a Carduus, and among bushes of Tamariz gal- 
lica several Silenes, Hrodium Botrys, Bertol., Astrocarpus sesamoides, 
DC., and Passerina villosa (?), Wikstr., occur frequently. In addi- 
tion is found the pretty Ononis variegata, Desf., in the drift-sand of 
the isthmus, in pretty considerable abundance. 
BIBLIOGRAPHICAL NOTICES. 
Recherches sur 1 Anatomie, la Physiologie et ? Embryogénie des Bryo- 
zoaires ; par M. Van Beneden, Professeur a I’ Université Catholique 
de Louvain. (Extrait du tom. xvii. des Mémoires del’ Académie 
Royale de Bruxelles.) 
In these ‘‘ Recherches,”’ Van Beneden continues the admirable series 
of Mémoires in which he proposes to illustrate the structure of the 
invertebrate animals found on the coast of Belgium. The first me- 
moir in the present brochure is devoted to the genus Lacuncuta, 
as Van Beneden calls the Lagenella of Farre, forgetting that Ehren- 
berg had long ago given the name Farrella to this zoophyte. And 
we would here remark that, while he carelessly sets aside the rules 
of scientific nomenclature, Van Beneden has a happy tact in confer-" 
