634 



SCIENCE 



[N. S. Vol. XL. No. 1035 



Crete expert, The Atlas Portland Cement Com- 

 pany; Sumner E. Churcli, manager, research 

 department, Barrett Manufacturing Com- 

 pany; William H. Connell, chief, bureau of 

 highways and street cleaning, Philadelphia; 

 W. W. Crosby, chief engineer, Maryland Geo- 

 logical and Economic Survey; Charles Henry 

 Davis, president, National Highways Associa- 

 tion; Arthur W. Dean, chief engineer, Massa- 

 chusetts Highway Commission; John H. De- 

 laney, commissioner. New York State Depart- 

 ment of Efficiency and Economy; A. W. Dow, 

 chemical and consulting paving engineer; 

 H. W. Durham, chief engineer of highways. 

 Borough of Manhattan, New York; C. N. 

 Forrest, chief chemist. Barber Asphalt Paving 

 Company; Walter H. Eulweiler, chief chemist, 

 United Gas Improvement Company; D. L. 

 Hough, president, The United Engineering 

 and Contracting Company; William A. 

 Howell, engineer of streets and highways, 

 Newark; Arthur N. Johnson, highway engi- 

 neer. Bureau of Municipal Research, New 

 York ; Nelson P. Lewis, chief engineer. Board 

 of Estimate and Apportionment, New York; 

 Philip P. Sharpies, chief chemist, Barrett 

 Manufacturing Company; Francis P. Smith, 

 chemical and consulting paving engineer; 

 Albert Sommer, consulting chemist; George 

 W. Tillson, consulting engineer to the presi- 

 dent of the Borough of Brooklyn, New York; 

 George Warren, president, Warren Brothers 

 Company. 



Greenhouses for work in plant pathology 

 and plant physiology are now in process of 

 erection and will be ready for use within a 

 few days at the University of Illinois. These 

 comprise 12 greenhouse rooms to be equally 

 divided between the two subjects. Green- 

 houses are usually provided with ample heat- 

 ing arrangements but these new houses of the 

 university will also have in connection an 

 ample refrigerating plant so as to enable such 

 sections of the house as may demand it to be 

 cooled to the desired point. There is provis- 

 ion, such that any desired area may be iso- 

 lated, " quarantined " from other sections 

 and also for regulating the humidity and 

 other factors of environment in such way as 



may be necessary in studying disease resis- 

 tance, immunity, etc. 



Secretary Lane has issued an order desig- 

 nating as nonirrigable under the 320-acre 

 homestead law more than a million acres of 

 land in the state of Oregon. The effect of this 

 order, which becomes effective November 10, 

 is to make such of these lands as are vacant 

 and subject to entry available to be taken up 

 as enlarged homesteads of 320 acres each. 

 Those haying within the designated area en- 

 tries of 160 acres upon which final proof has 

 not been made may apply to enlarge their 

 homesteads to 320 acres by taking up an addi- 

 tional 160 acres of any of the designated land 

 which is surveyed, vacant, nontimbered, etc., 

 and which adjoins their present entries. 



The Panama-Pacific International Exposi- 

 tion is provided with its own railway system, 

 which runs through all the exhibit palaces and 

 throughout the exposition grounds, connect- 

 ing with the freight ferry slip near the Pal- 

 ace of Machinery. Cars may be switched into 

 the exhibit palaces and exhibits unloaded in 

 the space in the palaces which they are to 

 occupy. Under the classification of exhibits 

 each group and class of exhibits at San Fran- 

 cisco is assigned a certain area in the exhibit 

 palaces, an arrangement which simplifies to an 

 extraordinary extent the actual placing of ex- 

 hibits. When an exhibitor makes application 

 for exhibit space his application automatically 

 falls into one of the eleven different exhibit 

 departments and automatically will be placed 

 in one of the eleven exhibit palaces. Consoli- 

 dation agencies are established in the east and 

 exhibits routed direct to the exposition 

 grounds. Whenever possible exhibits are made 

 up in carload lots. More than seventy thou- 

 sand tons of exhibits will be shown at San 

 Francisco, involving a freight charge of more 

 than $3,000,000. Exhibits brought from dif- 

 ferent portions of the United States will be 

 returned without charge to the exhibitor, pro- 

 vided they have not changed ownership. When 

 a car load of freight reaches Oakland it is 

 barged across San Francisco bay to the expo- 

 sition freight ferry slip, or, if shipped via 

 San Francisco Peninsula, it will come by the 



