The same was found to be the case by Lieutenant Solari of the Italian Navy, at whose disposal the ship Carlo alberta was placed by the King of Italy in 1902, for the purpose of making investigations into wireless telegraphy; and summing up the points which he considered to have been fully established by his experiments on board that ship, he mentions among them the fact, that sunlight has the effect of reducing the power of the electro-magnetic waves, and that consequently a greater force is required to produce a given result by day than by night.
"The Law and the Word"
Thomas Troward
It was said that the addition in alberta was 20 per cent.
"The Desert of Wheat"
Zane Grey
R59535. Tourists' and shippers' guide of alberta.
"U.S. Copyright Renewals, 1950 January - June"
U.S. Copyright Office