Nichols.] 
74 
[October 6 
BIBLIOGRAPHY. 
Agassiz, Alex. — ■ Hydrographic Sketch of Lake Titicaca. Proc. Amer. 
Acad., xi (1876), pp. 283-292. [Quoted above.] 
Becquerel et Breschet. — Temperature de la terre et des lacs it 
diverses profondeurs. Bibl. Univ. de Geneve, vii (1837), pp. 173-177. 
[Contains a description of an electrical apparatus for determining the temperature 
at different depths, together with the results obtained in the lake of Geneva. The 
temperature was found to be 6°. 5 at a depth of from 80 to 104 meters.] 
Boston, Mass. — Special report of the U. S. Commissioners on Boston 
Harbor on the relation of Mystic Pond and River to Boston Harbor* 
Boston, 1861. 
[Contains some observations on temperature made on Mystic Pond in September, 
1860, and January, 1861, by Henry Mitchell, Assistant U. S. Coast Survey. He found 
the temperatures as follows : — 
September 1, 1860. January 2, 1861 (through the ice). 
1 foot. 
730 F. 
220.8 C. 
320.75 F. 
00.4 c. 
10 feet. 
730.5 
230.1 
340.5 
10.4 
20 
u 
71° 
210.7 
— 
— 
30 
a 
— 
— 
360 
20.2 
40 
a 
620.5 
160.9 
— 
— 
60 
a 
— 
37°.o 
3o.l 
60* 
u 
( 360.5 
20.5 
? 370.5 
3o.l 
Brunner, C. — See Fischer- Ooster. 
Buchan, A. - — Remarks on the deep water temperatures of Lochs 
Lomond, Katrine and Tay. Proc. Roy. Geog. Soc., xvii (1873), pp. 
73-74; Proc. Roy. Soc. Edinb., vii (1869-72), pp, 791-795; Br. Assoc. 
Rep., xlii (1872), pp. 207, 208 (Sect.) 
[The author alludes to the observations of Sir Robert Christison on the deep water 
temperature of Loch Lomond in 1871, and to those made by James Jardine, C. E., in 
Lochs Tay, Katrine and Lomond in 1812 and 1814. He finds that the mean tem- 
perature of the air for the six colder months is almost the same as the deep water 
temperature of the lochs, and suggests that “ it is the mean temperature of the cold 
half of the year which determines the temperature of the lowest stratum of water at 
the bottom of deep lakes.”] 
Buchanan, J. Y. — On the freezing of lakes, f Proc. Roy. Soc. Edinb., 
x (1879-81), pp. ? — ?; Nature, xix (1878-79), pp. 412-414. [Quoted 
above.] 
Burnier. — Resume des observations sur la temperature du Lac Leman. 
Bibl. Brit. Arch. Sci., xxi (1852), pp. 192, 193. 
[Observations made at Morges, at depth of 1 meter.] 
