Mat 19, 1922] 



SCIENCE 



533 



chinery, apparatus and equipment and instru- 

 ments for control, precision, recording, gaging 

 and measuring, and a thousand other items 

 used in converting the raw materials into the 

 finished products. The finished products them- 

 selves, whether they be organic, inorganic, 

 solid, liquid, gaseous, or of any other form, are 

 all to be there. Many new things upon which 

 manufacturers were working when the war 

 ended and which have been more leisurely per- 

 fected since will be shown for the first time. 

 Industrial progress continually calls for greater 

 advancement and perfection in manufacture, 

 and each year sees many notable improvements 

 upon the exhibits in the exposition. Counting 

 only these, the time of technical and business 

 men is well spent in inquiring into the exhibits. 

 One exhibitor, who for the past few years has 

 been devoting time to the perfection of a new 

 form of apparatus, said the other day that it is 

 now when men have time to spare for considera- 

 tion of these things that he expects a consider- 

 ably larger and more interested attendance in 

 his booth. "When the plants are idle as they 

 are now, the most progressive companies are 

 examining into our apparattis, and a remark- 

 able thing is that we are making some installa- 

 tions in plants which are now closed, so that 

 when they begin work they will be in better 

 position than ever and have an advantage in 

 taking this opportunity to prepare to reduce 

 their costs for the future. I'm looking for 

 many more such openings through our exhibit 

 and with considerable enthusiasm for the entire 

 exposition." 



The managers report that three full floors of 

 the Grand Central Palace are already taken 

 for the exposition and a part of a fourth. They 

 expect all space will be engaged before the 

 opening date. Already, 303 exhibitors have 

 contracted for space. 



The exposition will contain two interesting 

 special sections : one upon the subject of fuel 

 econom5', where exhibits intended for the more 

 efficient use of fuel, its combusion, distribution, 

 or control will be made. The other will 

 deal with shipping containers, including the 

 container itself, whether of metal, wood, fiber, 

 paper, glass or in cooperage products of slack 

 and tight barrels, tanks and towers, and with 



machinery for packaging, labeling, handling, 

 and conveying the packaged material and mark- 

 ing it ready for final shipment. 



Work upon the program has not yet been 

 actively undertaken but it may be expected to 

 compare more than favorably with the high 

 standards of the preceding iexpositions. The 

 management have returned to the Grand Cen- 

 tral Palace with their offices, and all inquiries 

 should be directed there. 



FELLOWSHIPS IN MINING RESEARCH 



The cooperative department of mining en- 

 gineering of the Carnegie Institute of Tech- 

 nology, Pittsburgh, announces the offer of two 

 fellowships in mining research, and two in 

 teaching and research, in cooperation with the 

 Pittsburgh Experiment Station of the United 

 States Bureau of Mines. The fellowships are 

 open to the graduates of universities and tech- 

 nical schools who are properly qualified to 

 undertake research investigations. The value 

 of each fellowship is $750 per year of ten 

 months beginning on July 1 for the position 

 of research fellow and on August 1 for teach- 

 ing fellow. 



Investigations will be on the following sub- 

 jects: (1) Acid Mine Waters: (a) physical- 

 chemical study of the mechanism of corrosion 

 in acid mine water; (6) neutralization with 

 limestone, blast furnace slag, etc.; (c) recovery 

 of iron oxide for gas purification and other 

 purposes; (d) purification for use in boilers. 

 (2) Shooting Coal: (a) factors in shot firing 

 which favor the production of lump coal; (6) 

 effect of location, size, and depth of bore holes ; 

 (c) kind of explosive; (d) sequence of firing; 

 (e) method of charging and firing; (/) method 

 of cutting coal. (3) Spontaneous Combustion 

 and Coal Storage: (a) effect of size of coal; 

 (b) effect of moisture; (c) effect of anthraxylon 

 and attritus; (d) action of various forms of 

 sulphur. (4) Geology: (o) relation of rela- 

 tive i^roportions of anthraxylon and attritus in 

 coal to its coking properties and by-product 

 yield; (&) correlation of coal seams by micro- 

 scopic characteristics; (c) constitution of coal 

 seams in western Pennsylvania. (5) By- 

 products Coking: (a) determination of the 

 heat of carbonization of coal; (6) determina- 



