NOTICES OF SERIALS. 
51 
in question are like spores scattered over a surface, which shoot forth sacs to con¬ 
tribute in common to the formation of the epidermis. The thallophyse is no pore¬ 
cell, no fissure or respiratory orifice, but a centre for the increase of the cells of the 
epidermis, having a central or heart-cell, whose contents are found in a state of 
more or less granular coagulation, or of solution. This central cell may be 
developed in different degrees, or remain undeveloped, or disappear. In the 
latter case the two including cells become true epidermis cells. Respira¬ 
tion in plants takes place by Endosmose and Exosmose of the cells of 
the epidermis. “ Stomata” are found in surfaces not in contact with the 
air; for example, on the inner walls of the berry of Atropa belladonna in its 
younger stage. Some remarks are added on the nature of the grape disease. It 
is shown that the Carposma, or organism proceeding from the pollen-granule, may 
degenerate into mould. The disease of the grape is concluded to be a consequence 
of the luxuriant development of the Carposma of the grape-pollen upon the green 
organs of the plant. The Oidium tuckeri , then, is no self-propagating fungus, but 
a fungus-like development of the Carposma. Heavy rains, by washing off the 
deposit of pollen, prove a natural remedy. (Mayer) On the structure of the Inte¬ 
gument of the Cetacea; with three plates—p. 449-475. (Beigel) Investigation 
of the Urine, and the quantity of Urea excreted by healthy subjects, under ordi¬ 
nary, spare, or generous diet, and under the action of antiphlogistic medicines; a 
Prize essay—p. 477-528. 
Physikalische Abhandlungen deb Koeniglichen Akademie der Wissen- 
SCHAFTEN ZU BERLIN. TRANSACTIONS OF THE ROYAL BERLIN ACADEMY 
of Science. Section of Physical Sciences. For the year 1854. 4to. Berlin. 
1855. 
(Mueller) On the genera of the Echinoid larvae. Seventh essay on the meta¬ 
morphosis of the Echinoderma ; with nine plates—p. 1-55. (Beyrich) On the 
stratification of the Cretaceous formation in the Silesian mountains; with a chart 
—p. 57-80. (Lichtenstein and Peters) On some remarkable new Mammalia of 
the Royal Zoological Museum; with three plates—p. 61-100. (Peters) On the 
Echinoids observed on the seacoasts of Mozambique, and the group Diadema in 
particular; with a plate—p. 101-119. (Klotssch) The genera and species of 
Begoniacem; with twelve plates—p. 121-255. 
Zeitschrift Fuer Wissenschaft liche Zoologie u. s. w. Journal of 
Scientific Zoology, by Siebold and Koelliker. 8vo. Leipzig. Vol. VII.; 
with twenty-four plates. 1855, 1856. 
Parts I. and II. May 20th, 1855. 
(Meissner) Contributions to the Anatomy and Physiology of the Gordiacei; 
with seven plates—p. 1-144. (Lent) Contributions to the history of the regene¬ 
ration of severed nerves ; with a plate—p. 145-158. (Claudius) Remarks on the 
structure of the spiral ridge of Helices ; with a plate—p. 154-161. (Vogt) Con¬ 
tribution to the Embryology of one of the Cephalophora, Pneumodermon ? —more 
probably a Gastropod, perhaps Gasteropteron , according to Gegenbaur in a note; 
with a plate—p. 162-169. Short Communications and Correspondence— 
p.170-184. (Filippi) On the swimming-bladder of Oligopus ater Risso. (Bruch) 
On the Micropyle of fishes’ eggs ; with a plate. (Agassiz) On the Angiology of 
the Lymphatic system in Mollusca. (Koelliker) On the action of caustic alkalies 
on the movements of the spermatic filaments. (Same) On the occurrence of cor¬ 
puscles of lymph in the origin of the Lymphatic vessels. (Same) On the action 
of a concentrated solution of Urea on the blood-cells. 
Part III. Sept. 29th, 1855. 
(Czermak) On the nature of the system of curves, detected by Dr. Thomas, 
on polished sections of the optic lens; with a plate—p. 185-192. (Vogt) A few 
words on the Systematic position of the Rotifera; with a plate—p. 201-272. 
Refuting by various arguments the opinion of Burmeister, adopted by Leydig in 
his essay in the preceding volume, which associates them with the Crustacea, and 
maintaining their nearer agreement with the worms. (Koelliker) Physiological 
studies of the seminal fluid ; with a plate—p. 201-274. (Hensche) On the 
