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32 Reviews of t\ARINE LUBRICATION, an M: educational paper consisting , of 64 pages with three color illustrations, is a wholly new publica- tion by the Vacuum Oil Co. dealing with the lubrication problems of steamships equipped with reciprocat- ing engines. This book contains ma- terial that is the result of years of actual experience with the lubrica- tion of marine equipment. It offers the best practice known to lubrication experts in the handling of marine apparatus. This publication emphasizes’ the economic significance of lubrication which is sometimes disregarded by the ship operator, much to his det- riment in terms of repair bills. It is brought out clearly that much wastage of lubricants can be avoided and that wastage of lubricants usu- ally goes hand-in-hand with poor lu- brication. Various types of engines are an- alyzed and the parts that are inter- woven with the lubrication problem are treated in very intimate detail. Emphasis is laid upon the results in power saving that will result from proper care of the internal parts and their lubrication. The necessity of sealing the piston against power losses and the piston rods against leakage of steam is described and pictured. The part that lubrication plays in as- sisting in the performance of these functions is taken up in its proper re- lationship to the different types of engines, valves, piston rings, and pack- ings. Main bearing lubrication of recipro- MARINE REVIEW Late Books cating marine engines is discussed from the standpoint of the operator. It is shown that a scientific method of application by which the oil is fed to the right part of the bearing, has a determining influence on the quantity of oil used and upon the manner in which the oil lubricates the bearing. The engineer who has charge of the maintenance of the main bearings of a marine steam en- gine or of any bearings, will do well to study carefully the basic principle of film formation applied to such engines as described and _ illus- trated on page 19. Lubrication of Propeller Shaft A chapter is devoted to the lubrica- tion of the propellor shaft, with its thrust bearing, stern tube bearing and stuffing box. The service that each part has to perform and the difficulties that may be encountered under actual operating conditions are treated with a view to giving thé operator information such that he can avoid these difficulties or overcome them if they should occur. A subject that has caused much discussion among engineers and much apprehension on the part of marine engineers in particular, is that of oil in the boilers. This is one of the things that must be avoided as oil has a disastrous effect on their oper- ation. The mechanical equipment that is used in separating the oil from the steam is described on page 37. The reduction in heat transfer capacity of the boiler due to oil con- tamination, the effect of oil floating on the water in the boiler and the influence of oil on the condenser ca- pacity, emphasizes the need for know- ing how to avoid and eliminate these troubles, together with all the at- tendant difficulties. How to Lubricate Auxiliaries Deck equipment such as_ winches, windlasses and capstans require care- ful treatment in order to have them in constant readiness to perform the service expected of them. The steer- ing’ apparatus, likewise, requires care and attention that its response may be ready and prompt. The lubrication and care of all this apparatus is ad- equately described. Much other information and data is contained within the covers of this new publication, an especially import- September, 1926 ant item being the description of the oils used in marine service, their characateristics and the particular field of usefulness of each one. The section on “care of lubricants” should be put into service as a means of promoting correct lubrication and of deriving the full benefits from high grade lubricants. The drawings, most of them in sec- tion showing important details, some of them in perspective, and a few of them in phantom, provide a most in- teresting and instructive feature of the book. With colors, the red indicat- ing oil, and the green indicating water and steam, much that would not otherwise be easily understood, is brought out clearly. The title of this book is “Marine Lubrication of Steamships with Re- ciprocating Engines” and it is now available to any of the customers and friends of the company who would like to receive it. In the case of large steamship companies as many copies as are needed for the engineers of the fleet and other members of the personnel will be supplied. Re- quests may be made through the nearest’ Vacuum Oil Co. office or di- rectly to headquarters, at -61 Broad- way, New York city, care of depart- ment C. River Improvements The H. C. Frick Coke Co. will open bids in a few days for river improve- ments to its Palmer mine on the Monongahela river, similar to those at the Alicia mine and which is to cost more than $10,000,000. The con- tract will include 380,000 cubic yards of dredging and the placing of ap- proximately 20,000 cubic yards of concrete. A new opening will be made to facilitate the removal of coal. This slope is to be 300 feet deep and is to connect with a slope now being driven from the interior. Continue Shipping Lines According to a message sent to Charles L. McNary, Salem, Oreg. and R. N. Stanfield, Portland, Oreg., by Chairman O’Connor, the _ shipping board has no intention of advertising for sale the Oregon Oriental line op- erated out of Portland by the Colum- bia Pacific Shipping Co. or to sell the American Oriental Freight service out. of Seattle. The board however is deeply concerned with all possible im- provement in the operation of these lines with due regard for the local interests and all concerned in the spirit of the merchant marine act.