814 The AnierirtU) GenlfXjisf. November, 1S9& 
twecn lakes Huron und Supcrioi' im the south and Albany river and 
James bay on the north. 4. A chapter (pp. 1.39-1()(]) on calcium carbide 
and acetylene ^as, consisting of exti-acts from ai-ticles by Vivian B. 
Lewes, T. L. Willson and J. Suckert. ."5. Account of the steps to be 
taken to procure the assistance of the government in making diamond 
drill explorations. 6. A chapter (pj). 177-198) on "Nickel and its Uses." 
7. Mining accidents (pjj. 199-215). 8. Summer mining .schools (pp. 216- 
222). 9. Fifth Report of the Inspector of Mines (pp. 22.3-253). 
The principal article and the one which represents the largest amount 
of original geological work is the one by Dr. Coleman on gold in Onta- 
rio. The description of the rocks of the Rainy Lake region is based on 
Lawson's classification, and in other respects agrees with the main facts 
as set forth in the twenty-third Annual Report of the Geological and 
Natural History Svxrvey of Minnesota. The views of Winchell and 
Grant as to the relative ages of the granite and gabbro of Shoal and 
Bad Vermilion lakes are held by Dr. C'oleman to be more probable than 
those expressed by Dr. Lawson. 
The general conclusion reached is rather conservative as to the pros- 
pects for gold mining, although some of the samples assayed gave very 
good results and portions of the district, especially the Seine River re- 
gion, are considered (|uite promising. 
A few errors of fact have crept into this report from a lack of perfect 
familiarity wath the region. Thus it may be pointed out that the wa- 
ters of Rainy lake are usually not turbid nor brownish, but clear and 
colorless: that trout frequent its waters, bass are not uncommon in sur- 
rounding lakes and the drainage is not into Red river: that the cost of 
milling at the Little American mine is not given in the Minnesota re- 
port as §7 per ton. It would appear that the preference of the term 
"bedded" rather than "segregated" as applied to the veins in the green 
schist is not well founded, for as the writer himself states. the veins have 
probably had an origin similar to that of the fissui-e veins and therefore 
are not of the nature of interstratified deposits or beds, bvit rather formed 
by the action of segregation in its broadest sense. The report as a whole 
gives a good idea of the geology and developments of this new district 
and will be useful to all interested in the region. 
The Ontario Bureau of Mines is doing a good work and doing it well. 
Many of our states could do worse than to copy the example of Ontario 
and establish a mining department which should combine under one 
head and in one report the branches of mine inspection and the adver- 
tisement of the resources and industries of the state through competent 
reports. h. v. w. 
Scientific Results of the Netc Siberia Islands Expedition in the years 
1885 and 1886, Part III: The Fossil Ice Strata and their Eelations to 
the Mammoth Remains. By Baron Eduard v. Toll. (Memoirs of the 
Imperial Academy of Sciences of St. Petersburg, seventh series, vol. 
xLii, no. 13, pp. vii, 1-86, with 7 plates and 17 figures in the text; 1895.) 
Underground strata of ice are found in many localities of the tundras 
from the Yenisei river eastward about 2.500 miles to Bering strait and 
