. Nature . continued cooperationwith the Survey of the United States. In a paper on thebuilding-stones of New Jersey, the rocks are excellentlyillustrated by coloured photographs of polished surfaces, aswell as bv views of the buildings constructed from them. Toronto Observatory (1907).—The results of the meteor-ological and seismological observations for the year areinteresting and valuable. In the annual summary the resultsare compared with the means for the last sixty-eight mean temperature of 1907, 44-2°, was practically normal; of maxima, 51-6°, of minima, 367°. The absolut
. Nature . continued cooperationwith the Survey of the United States. In a paper on thebuilding-stones of New Jersey, the rocks are excellentlyillustrated by coloured photographs of polished surfaces, aswell as bv views of the buildings constructed from them. Toronto Observatory (1907).—The results of the meteor-ological and seismological observations for the year areinteresting and valuable. In the annual summary the resultsare compared with the means for the last sixty-eight mean temperature of 1907, 44-2°, was practically normal; of maxima, 51-6°, of minima, 367°. The absolutemaximum was 88-8°, in July (highest on record, 99-2°);absolute minimum, —100°, in January (lowest on record,— 26-5°). The highest solar radiation was 112-3° (June);lowest night radiation, - 13-9° (January). The annual rain-fall was 25-56 inches (normal, 26-S8 inches); depth of snow-fall, 52 inches (normal, 66 inches). Rain fell on 100 daysand snow on forty-seven days. Bright sunshine was re-. F[,;. water-l The annual report of the Iowa Geological Survey for1908 has beeii received in 1910, and is mainly occupied(pp. 21-687) by a comprehensive series of papers on thecoal-deposits of the State. The peat bogs and their floraare described in the concluding papers. G. A. J. C. REPORTS OF ~HE Meteorological Service of Canada (1906).—Thisreport extends to nearly 650 quarto pages ; the geo-graphical position, and height above sea where known, ofthe numerous stations in operation in that year are given,also hourly observations at Victoria, Winnipeg, Toronto,and Montreal. From a monthly chronicle of weather con-ditions it would appear that, generally speaking, tJempera-ture was above and rainfall below the normal. Tempera-tures exceeding 100 and below —50° were, as usual,recorded at many stations, the highest being 107°, at PointClark, Ontario, and the lowest —65-5°, at Dawson City,Yukon. The absence of maps, the impracticabilit
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