INDEX I. 
TO 
MISCELLANEOUS COMMUNICATIONS TO THE 
SECTIONS. 
ACCADIAN language, on the relation 
between the, and the Indo-European, 
Semitic, and Egyptian languages, 134. 
Acids and bases, on the heat of combi- 
nation of, 44. 
Acids of the series C" H"O*, on the pre- 
sence of several, among the products 
of the distillation of peat, 58. 
Acoustic phenomenon, on a singular, 22. 
Africa, Southern, on discoveries in, 146. 
Agricultural and manufacturing industry, 
on, 162. 
Alabama, on Prof. Tuomey’s geological 
map of, 78. 
Albumen, on the physiological relations 
of, 110. 
Albuminized collodion plates, on the pre- 
servation of, 61. 
Alcohol, on the specific gravity of chlo- 
ride of nitrogen, with some remarks 
upon its action on, 47. 
Algz, amount of nitrogen in the, 44. 
Alison (Dr.) on certain @ priori prin- 
ciples of biology, 109. 
Alum, on the effects of, in panification, 55. 
Aluminium, on the atomic weight of, 53 ; 
ammonio-iodide of, 55. 
Amazon, on routes from Lima to the 
navigable branches of the, 145. 
America, on equitable villages in, 170. 
Ammonia, on some arseniates of, 47. 
Ammonio-iodide of metals, on a new 
method of forming, 55. 
Anderson’s (James) report of a searching 
party down the Great Fish River in 
quest of the crews of the ‘ Erebus’ and 
‘Terror’ in 1855, 148. 
Andrews (Prof. T.) on ozone, 44; on the 
heat of combination of acids and bases, 
ab. 
Andrews (William) on the sea-fisheries 
of Ireland, with reference to their in- 
vestigation practically and scientifi- 
cally, 101. 
Angles, on infinite, 3; a demonstration 
that the three angles of every triangle 
are equal to two right, 4. 
Animals, on the presence of copper in the 
tissues of, 55; on the dispersion of 
domestic, in connexion with the pri- 
mary ethnological divisions of the 
human race, 105; on the alternation of 
generationsand:parthenogenesisin,113. 
Annuities, on deferred, 172. 
Apatite, on the composition of, 59. 
Apjohn (Dr.) on some compounds of 
cyanogen, 44; on the amount of 
nitrogen in the Algz, 7d. 
Aquaria, on a method of applying the 
compound microscope to the sides or 
top of, 106. 
Arctic searching expedition, on the final, 
146. 
Astronomical observations, on the theory 
of, 2. 
Astronomy, 23. 
Atlantic cable, on diminishing the strain 
on the, by an elastic regulator, 180. 
Atmosphere, on the vertical currents of 
the, 30. 
Atmospheric circulation, on the grand 
currents of, 38. 
Atmospheric vicissitudes and epidemicdis- 
eases, on the connexion between, 115. 
Attractions, theory of, on some general 
propositions connected with the, 3. 
Aurora at Point Barrow, on the, 14. 
Australia, on the present condition of the 
natives of, 154; on the effects of the 
gold of, 160, 
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