Vi 
CONTENTS. 
ZOOLOGY AND BOTANY, INCLUDING PHYSIOLOGY. 
Mr. J. G. Jerrreys on the recent Species of Odostomia, a Genus of Gaste- 
ropodous Mollusks inhabiting the Seas of Great Britain and Ireland «...... ‘. 
Professor Owen on the Os humero-capsulare of the Ornithorhynchus.......++4.. 
- 
on the Communications between the Tympanum naul: Palate 
in the Crocodiles ......:cc.c.sssecsescccecceceessteeseucnecebaseseuers eT Oth 
Lieut.-Col. Porriock’s Note on Sounds emitted by Mollusca.........ssseeeseeees 
Mr. Lovett Reeve on a new Species of Argonaut, A. Owenit, with some Ob- 
servations on the A. gondola, Dillwyn ........seseceseesersenesereeeneeseneee idasctises 
Lieut. Sprart on the Influence of Temperature upon the Distribution of the 
Mr. 
Fauna in the Aigean Sea ...scscscscseccccerscecerscscnssctrsceesersavees ane ssuaneeee 
TT. L. Taytor’s Notice of an Observation at Bathcaloa, Ceylon, on the 
Sounds emitted by Mollusca .....sssscsscssecesesecessensreessacseccesceeecueenes eee 
Dr. A. Water on Cases of impaired Vision in which Objects appear much 
smaller than natural ......... Bop santpens halen advnai saan tnpass« 52 tnae ape eaaetnan ema 
on the Luminous Spectra excited by Pressure on the Retina 
_ and their application to the Diagnosis of the Affections of the Retina and 
{tS APPENAAES.........csserevscseceneecscneeeescsscsensscnsscsesangegsceesesececesenees 
’s Microscopic Observations on the Movement of the Human 
Blood in the Capillaries, and on the Structure of the Nerves in the Glands 
at the Inferior Surface of the Tongue ........sscscssseeecsensesesetecnsaseevereees 
. Tuomas Witttams on the Structure and Functions of the Branchial 
Organs of we Annelida and Crustacea .........s0c.ssccccsceseccccesrecseceassecres 
: on the Physical Conditions regulating the vertital 
Distribution of Animals in the Atmosphere and the Sea.................seeeees 
. C. C. Basineron’s Additions to the British Flora, and an Exhibition of 
Drawings prepared for publication in the Supplement to English Botany... 
. JouN BLACK WALL On Periodical Birds observed i in the Years 1847 and 1848 
IBOLT HAN WTSE, oitee csecckcuaeceucethoescvteusevesturcvecedcesteqeesbecehneiaeenmn are 
. Josuva Crarke on the parasitic Character of Rhinanthus Crista-Galli ... 
. A. Henrrey’s Note on the Development of Pollen............scceeeeeeeeeereee 
. E. LANKESTER on some Vegetable Monstrosities illustrating the Laws of 
MMOPpHology. ieee ree cc cccoccsccctescnctecatcctescscersestescecensessansesvamenstens 
. Matturw Mocerinder on a Peculiarity in the Protococcus nivalis ........ 
. Joun Puiitips on the Colour Stripes of a Rose (Rosa sempervirens), single 
. G. H. K. Tuwarres on an apparently undescribed state of the Palmellez, 
with a few Observations on Gemmation in the Lower Tribes of Plants...... 
. W. H. Croox 6n a supposed connexion between an insufficient Use of Salt 
in Food and the Progress of Asiatic Cholera  ...........ccssceseeeeeeeeees Rant 
. Ricard Fowrrr’s Attempt to give a Physiological Explanation how 
Persons both Blind, Deaf and Dumb from Infancy interpret the Commu- 
nications of others by theit Touch only .............c.cssesesecsecescnseeeeessess 
- Macponatp on the erroneous division of the Cervical and Dorsal Vertebrze, 
and the connection of the First Rib with the Seventh Vertebra, and the - 
normal position of the Head of the Rib in Mammals............ wee At 
Professor Owen on the Homologies and Notation of the Dental System in 
Mammalia 
on the Value of the Origins of Nerves as a meee Cha- 
teen eertnease seer teeenens eaten reeenene oePe ECO ECR EURSEECUOSECEICOOS COED 
racter ) isis 
82 
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