The following text may have been generated by Optical Character Recognition, with varying degrees of accuracy. Reader beware!

(Continued from page 25.) however, that the cost at present mar- ket values of the raw material re- quired is such that, with the, low. cost for applying them to the cement, the waterproof cement produced by, this process could be put upon the market on terms that should make it readily available for very generai use. Conclusion. From the above it will be seen that, so far as the present series of tests have resulted, the process meets all the requirements set as a_ standard, and meets them in a very satis'actory manner. In view of this we feel jus- tified in recommending the process as one in every way worthy of the se- rious attention of all who are inter- ested and skilled in the manufacture and use of Portland cement. It is desirable, howeve-. that in or- der to secure such conclusive and convincing proofs of the merits of the process as will be necessary, a more extended series of te ts be now ap- plied, covering the preparation of large enough test pieces to prove the waterproof results in concrete of fail working size of aggresat> "and in all propcrtions likely to be em- ployed. We would resommend also that," with improved facilit e= which can readily be added here at our plant for grinding clinker and applying the waterproofing process on a considerable scale, sample lots of 50 pounds, or larger if necessary, be prepared of the finished product for suitable distribution so that those whose opinion is entitled to weight in such matters may be Satisfied by Soave 'their own .tests of the merits of this important and, useful process. likely to prove, most CHICAGO DOCK PLANS. A' proposal has been made that the city-of Chicago go into partnership with dock companies for the purpose of de- veloping Chicago's harbor and lake com- merce. The plan, which is in accord- ance with the recommendations of May- or Busse's harbor commissioners' report, is now being considered by the munici- pal authorities. The plan isto effect. a Sint ¢ agree- - ment between 'the city and private cot- porations on the principle of the: trac- tion ordinances, under which. the com- pany will finance and construct the hat- bor, and the city will derive a percentage of the net receints and have-the right to purchase and operate the . busi- ness at any time. The plan has assumed such shape that an ordinance embodying engineers, "TAE Marine REVIEW these principles will be drafted and in- troduced into the city council within the next month. The: proposition has taken on addi- tional importance from the fact that! the war department is about to grant fed- eral. permission for the construction of three piers, which will run nearly. half a mile into the lake. In addition, the Chicago interests feel that'they will 'have the friendly aid of the new sceretary of war, Jacob M.. Dickinson, who takes a deep interest in the development of Chi- cago's harbor facilities. TO INSTALL CAGE MASTS. Secretary of the Navy Meyer has is- sued a statement in which he says that the repairs which will be necessary to the vessels of the Atlantic battleship fleet, recently returned from the trip around the world, are less than was anticipated. The statement was occasioned by the exterision of the time for the comple- tion of the work on the vessels from May 15 to June 15. Secretary Meyer wished to call attention to the fact that this extension was not necessitated by additional repairs, bift was made to en- able two new cage masts to be installed ready for the fall target practice. OHIO RIVER PROBLEM. Major Henry C. Newcomer, corps of United States army, who is in charge of the Ohio river, has begun the collection of data to show the amount of water taken from the river at various points for supplying munici- palities. It is believed that the figures will show' that the navigation of the river is affected in certain seasons by such use of the river water. Should it be proven that the use of the river for navigation is being inter- rupted by the pumping of water sup- plies to cities, a serious question as to the right of such cities to use water from the river would arise. NEW CHART OF DETROIT RIV- ER. A. revised edition of the chart rat Detroit River has just been published by the United States lake survey office, old custom house. Detroit, Mich. The chart is an engraving litho- graphed in five colors, and. shows, on scale of 1 :40,000 (1 in.=about % mile), the entire river from' Windmill Pt lighthouse ta) Lake St Clair to. De- troit river lighthouse in Lake Erie, with soundings, shore-line topography, and the lights, buoys, and -daymarks of the channels. In addition to the main chart of the whole river, an inset on enlarged two 'were received, 33 scale of 1:25,000 (1 in=about 2-5 mile) shows the improved channels of low- er Detroit: river from the head of Ballards reef channel to and including the recently' completed up and down. bound channels below Detroit! river lighthouse, with conditions as they will exist on the opening of navigation, 1909. 'The linés° of: the new Living- stone channel, now being dredged in a straight line from the 'middle of Ballards reef channel to Lake Erie, - passing to westward of Bois Blanc island, are also given. RECORDS OF LUSITANIA AND MAURETANIA, ee The following are the records of the Lusitania "and Maarctania of the Cunard Line: "Lusitania"--Queenstown to New York--4 .d.. 15. hh. 0am. = Record foe short route, 2,781 knots--best day's run 650 knots and continuous steam- ing for, 'voyage 25.05 knots.' East- bound record 4.22.50. ee "Mauretania"'--Queenstown to New York--4 d. 17, h. 6 m. Record for long route, 2,890 knots--best day's run 6/1 knots. Record fo: continuous steam- ing for voyage 25.55 knots. East- botind record 4.20.27--best day's run 607 knots--average for voyage 25.20 'knots. Plans are well under way for the organization of a permanent water- ways association having for its ob- ject the union of all interests of the . state of New York which might be concerned in the federal development of waterways. A commission, of which Senator Hill, of Buffalo, is chairman, recently held a meeting at Albany for the purpose of making preliminary arrangements. This com- mission was appointed pursuant to the action of the delegates from New York state at the recent meeting of the National Rivers and Harbors Coneeass « at Washington. F. < 'Snis state "superintendent of public works, has rejected all bids on contract No. 20, | involvy- ing an expenditure by New York state: of over . $4,000,000. Modi- | fied plans and specifications are to be prepared 'before. 'bids are again called for. The contract calls for 58 miles of dredging in the: Mohawk:river, from Lit- tle Falls to Bexford Flats. On: three occasions attempts to secure 'bids failed, but on readvertising for the fourth time the lowest being $4,913,168, more than 17 -per . cent .in excess of the state engineer's: estimate of $4,173,000, ee