. Construction : a journal for the architectural engineering and contracting interests of Canada . oil, the oil being measuredas a percentage of the cement. The specifications for the residuum oil are as fol-lows:— 1. The oil shall have a specific gravity of notless than .930. nor more than .940 at 25 deg. C.;2. It shall be soluble in carbon disulphide at airtemperature to at least ninety-nine and nine-tenthsper cent.; 3. It shall contain not less than one andone-half per cent., nor more than two and one-halfper cent, of bitumen insoluble paraffine naphtha; 4. It shall yield not less than two
. Construction : a journal for the architectural engineering and contracting interests of Canada . oil, the oil being measuredas a percentage of the cement. The specifications for the residuum oil are as fol-lows:— 1. The oil shall have a specific gravity of notless than .930. nor more than .940 at 25 deg. C.;2. It shall be soluble in carbon disulphide at airtemperature to at least ninety-nine and nine-tenthsper cent.; 3. It shall contain not less than one andone-half per cent., nor more than two and one-halfper cent, of bitumen insoluble paraffine naphtha; 4. It shall yield not less than two and one-half per cent,nor more than four per cent, of residual coke; twenty grammes of the material is heated forfive hours in a cylindrical tin dish, two and one-halfinches in diameter and one inch high, at a constanttemperature of 163 deg. C, the loss in weight shallnot exceed twenty per cent.; 6. The viscosity whenheated to a temperature of 50 deg. C. and main-tained at that temperature for three minutes, the vis-cosity shall not be less than forty nor more thanforty-five GKOrP OF AXIi FRIKNIlS ATT IX UI N i; TllK ((JXVKN IK l\. Presidents Address at Calgary .1- H. G. RUSSELL MR. ACTING MAYOR and Gentlemen,—On behalf of the Institute, I thank youheartily for your cordial welcome to Cal-gary. It IS, I can assure you, a great pleasure for usto be here, to meet here in the westerly city of thefederated bodies belonging to the Institute, and al-though we hope it will not be very long before wehave the British Columbia architects to join in withus. We will be very glad when they will be in aposition to join us. but I may say they have beentrying hard to get the Act passed through, but theyare experiencing some trouble, as Mr. Lines has toldus, in getting together, to make it strong enough forthe Legislature to do what is best to do. I think it has been said that Calgary is one of themost progressive cities in Canada and no doubt insome re
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