NEWS AND NOTES 



511 



as the "mother map of the country," for 

 it is now the principal source of all 

 other maps. The sheets cover areas 

 termed quadrangles, whose limits are 

 defined by meridians and parallels, and 

 nearly 1,800 of them have already been 

 completed. Some of the states have 

 valued these maps so highly that they 

 have defrayed half the cost of the sur- 

 veys. The expense of surveying a quad- 

 rangle and engraving a sheet ranges 

 from $3 500 to $8,000, but after the 

 map has served its scientific purpose to 

 the Government extra copies can be 

 purchased by any one for 5 cents each, 

 or $3 a hundred, which is simply the 

 cost of paper and printing. 



The maps are so detailed and accu- 

 rate that clever clay modelers have 

 used them as bases for relief or phys- 

 ical maps which were exact miniature 

 reproductions of the regions comprised 

 within the quadrangles, showing every 

 hill and valley in relative steepness, and 

 the lakes, swamps, falls of rivers, etc.. 

 as well as all the important works of 

 man. 



a ♦« »« 



^ «r 



New Publications 



THE United States Geological Sur- 

 vey announces new publications as 

 follows : 



Monograph. — XLIX. The Ceratop- 

 sia, by J. B. Hatcher, based on prelimi- 

 nary studies by O. C. Marsh, edited and 

 completed by R. S. Lull. 1907. 300 

 pp., 51 pis. Price. $1.50. 



Bulletins. — 324 (Reprint.) The San 

 Francisco earthquake and fire of April 

 18, 1906, and their effects on structures 

 and structural materials : Reports by 

 G. K. Gilbert, R. L. Humphrey, J. S. 

 Sewell, and PVank Soule. 1907. 170 

 pp., 57 pis. 



328. The gold placers of parts of 

 Seward Peninsula, Alaska, including the 

 Nome, Council, Kougarok, Port Clar- 

 ence, and Goodhope precincts, by A. J. 

 Collier, F. L. Hess, P. S. Smith, and A. 

 H. Brooks. 1908. 336 pp., 11 pis. 



335. Geology and mineral resources 

 of the Controller Bay region, Alaska, 

 by G. C. Martin. 1908. 141 pp., 10 

 pis. 



2,2,7- The Fairbanks and Rampart 

 quadrangles, Yukon-Tanana region, 

 Alaska, by L. M. Prindle ; with a sec- 

 tion on the Rampart placers, by F. L. 

 Hess, and a paper on the water supply 

 of the Fairbanks region, by C. C. Co- 

 vert. 1908. 102 pp., 5 pis. 



342. Results of spirit leveling in 

 California. 1896- 1906. 1908. 172 pp. 



343. Binders for coal briquets ; in- 

 vestigations made at the fuel-testing 

 plant, St. Louis, Alo.. by James E. 

 Mills. 1908. 56 pp. 



344. Strength of concrete beams, by 

 Richard L. Humphrev. 1908. 59 pp., 

 I pi. 



Geologic Folios. — 157. Passaic (New 

 Jersey-New York) folio, by N. H. Dar- 

 ton. W. S. Bayley. R. D. Salisbury, 

 and H. B. Kiimmel. 2y folio pp. of 

 text, 3 maps, and i sheet of illustrations. 

 Price, 25 cents. 



158. Rockland (Maine) folio, by E. 

 S. Bastin. 15 folio pp. of text and 5 

 maps. Price, 25 cents. 



Mineral Resources of the United 

 States, 1907. — Advance chapters on ce- 

 ment, bauxite, phosphate rock, and mo- 

 nazite and zircon. 



The Geological Survey has a limited 

 number of copies of these publications 

 for free distribution (e.vcept those 

 ivhosc price is stated), and some have 

 been delivered to Members of Congress 

 for distribution. The Survey cannot 

 give more than one copy to any person, 

 and general requests for all the papers 

 cannot be complied with unless a satis- 

 factory reason why every one is de- 

 sired is given. Payment for sale pub- 

 lications should be made by postal or 

 express money order, payable to the Di- 

 rector, U. S. Geological Survey, or in 

 cash — the exact amount. Checks, drafts, 

 and postage stamps cannot be accepted. 

 Applications sent to the Geological Sur- 

 vey should be addressed to The 

 Director. 



-^^o. 



