VI 11 
CONTENTS. 
PAGE 
II. Rhind (William), Esq., on the Irregularities of the Earth's 
Surface, and the Probable Mean Line of the Terraqueous 
Circumference (with Diagram), . . .149 
III. Macdonald (Professor W.), A Wernerian Examination of the 
Six Points of Pluto-Huttonism, . . .152 
March 23, 1864. 
I. Wright (T. Strethill), M.D., Observations on British Zoophytes 
and Protozoa — 1. On the Structure and Reproduction of 
Turneria, a new Rhizopod ; 2. On the Prehensile Apparatus 
and Sting Cells of Cydippe ; 3. On the Stem- Canals of Tuhu- 
laria indivisa, . . . . .153 
II. Taylor (Andrew), Esq., On the Geographical Distribution of 
the Marine Invertebrata in past time, considered in relation 
to the Doctrine of the Secular Cooling of the Earth, . 159 
III. Peach (Charles William), Esq., A List of Land and Fresh- 
water Shells found in the County of Caithness, . . 161 
IV. Macdonald (Professor), On the Homology of the Vertebrate 
Cranium, . . , . . .164 
April 27, 1864. 
I. Stevenson (William), Esq., On the Origin of Granite. Com- 
municated by George Logan, Esq., W.S., . . 165 
II. Taylor (Andrew), Esq., On the Water which permeates through 
Strata, considered as a Dynamic Power, . . 173 
III. Smith (John Alex.), Notes of the recent occurrence of some 
of our rarer Birds. (With exhibition of Specimens.) 1. 
Anthropoides virgo (Numidian Crane) ; 2. Syrrhaptes para- 
doxus (Pallas' Sand-Grouse) ; 3. Falco suhhuteo (Hobby) ; 
4. Pernis apivdrus (Honey Buzzard) ; 5. Bonibycilla garrula 
(Bohemian Waxwing) ; 6. Botaurus stellaris (Common 
Bittern) ; 7. Botaurus lentiginosus (American Bittern) ; 
8. Mergulus melanoleucos (Rotche or Little Auk) ; 9. Circus 
cyaneus (Hen Harrier) ; 10, Parus cristatus (Crested Tit- 
mouse) ; 11. Loxia curvirostra (Common Crossbill); 12. 
Alauda arvensis (Sky-Lark — a black variety) ; 13. Pha- 
laropus Idbatus (Grey Phalarope), . . . 176 • 
