
INDEX II. 
TO 
MISCELLANEOUS COMMUNICATIONS TO THE 
SECTIONS. 
Aca.era, on a new species of, from 
Belfast Bay, 77. 
f&gilops, on the transmutation of, into 
Triticum, 68. 
Africa, on a recent journey across, from 
Zanzibar to Angola, 110; latest explo- 
rations in south, to the N. of lake 
N’gami, 112; commercial documents 
relating to the eastern horn of, 113. 
African discovery, observations on the 
prospects of, 113. 
Ainsworth (W. F.) on a railroad through 
Asia Minor, 100. 
Air, on the thermal effects of, rushing 
_ through small apertures, 16; on the 
mechanical process for cooling, in tro- 
pical climates, 128. : 
Alga, on a microscopic, as a cause of the 
phenomenon of the coloration of large 
masses of water, 64. 
Alge, marine, on the distribution of the, 
on the British and Ivish coasts, 65, 
Alison (Dr.) on the present state of the 
law of settlement and the removal of 
-paupers in Scotland, 114. 
_ Allen (Capt. W.), an attempt to account 
for numerous appearances of sudden 
and violent drainage seen onthe sides 
of the basin of the Dead Sea, 95; on a 
new line for a.ship canal to the East 
Indies through the Dead Sea, 97; on 
the antiquities of the island Ruad, the 
ancient Aradus, and on the ancient 
, harbour of Seleucia in Pieria, 98. 
Allman (Dr.) on a microscopic Alga as 
». a,cause of the phenomenon of the co- 
_>sloration of large masses of. water, 64; 
on the development of ferment cells in 
|. the warm-water flax steeps, 7b.; on the 
_ |} universality of a medusoid structure in 
_oythe, reproductive gemmz of the tubu- 
larian and sertularian polypes, 70; on 
oa peculiar annelidan larya, 2b.; on the 
signification of the ovigerous vesicles 
in the hydroid polypes, 71. 
Almorness Head, on the occurrence of 
graphite at, 50. 
Alps, in the vicinity of Mont Blane, on 
the, 43. 
America, on the plan adopted by the 
Smithsonian Institution for investigating 
the meteorology of North, 26; on aship 
canal through the isthmus of central, 
110; on the most rapid communication 
with India, vid British N., 114. 
Anastatic process, on Glynn and Appel’s 
patent paper for the prevention of pi- 
racy and forgery by the, 35. 
» Andrews (Dr.) on the atomic weights of 
platinum and barium, 33; on the dis- 
covery of minute quantities of soda by 
the action of polarized light, 7b.; on 
the microscopic structure of certain ba- 
saltic and metamorphic rocks, and the 
occurrence of metallic iron in them, 
34; on a new variety of magnetic iron 
ore, with remarks upon the application 
of bicarbonate of baryta to quantitative 
analyses, 41. 
Angola, on a recent journey across Africa 
from Zanzibar to, 110. 
Animals, on the geographical distribution 
of, in connexion with the progress of 
human civilization, 78. _ 
Annelidan larva, on a peculiar, 70. 
Antrim, on the geological structure of the 
county of, 42; on the fossiliferous beds 
of, 53. 
Apjohn (Dr.) on the results of analysis of 
a substance resembling the pigolite of 
Prof. Johnston, 35; Is the mechanical 
power capable of being obtained by a 
given amount of caloric employed in 
the production of vapour independent 
of the nature of the liquids ?, 7d. 
Aradus, on theantiquitiesof the ancient, 98. 
Archangel, description of a Samoied fa- 
mily seen at, 84. 
Arctic regions, on the distribution of ani- 
mal life in the, 112. - 
