1 62 



PRINCIPLES OF STRATIGRAPHY 



Table Showing the Amounts in PermiUe of the Principal 



Total 



Cal- 

 cium 

 Ca 



Mag- 

 nesium 

 Mg 



23- 



24. 

 25. 

 26. 

 27. 



28. 

 29. 

 30. 

 31. 

 32. 



33. 



34- 



Rio de los Papagayos, Argentina 



San Lorenzo River, California 



Pecos River, New Mexico; average of 6 analyses 



Arkansas River, Rockyford, Colorado 



Salt River, at Mesa, Arizona; aver, of 6 anal. . . . 



Brazos River, Waco, Texas 



Mono Creek, California; aver, of 3 anal 



Arkansas River, Little Rock 



Red River of the North below Assinibuine 



Red River of the North at Fargo, N. Dakota. . . 



Humboldt at Battle Mt., Nevada 



Jordan, Utah Lake, Utah 



Los Angeles, Los Angeles (hydrant; 



Rhine at Strassburg 



Genesee at Rochester, New York 



Rhine at Cologne 



Bear River at Evanston, Wyoming 



Walker, Mason Valley, Nevada 



Mississippi at New Orleans 



Lower Nile; average of 12 monthly samples. ... 



St. Lawrence, Pt. de Cascades, S. side 



Rio Grande del Norte, Fort Craig, New Mexico 



Mohawk, Utica, New York 



Hudson, Hudson, New York 



Cumberland, Nashville, Tennessee 



Passaic, 4 miles above Newark, New Jersey 



Sacramento, Sacramento, California 



Maumee, Ohio 



Croton, New York City 



Moldau, above Prague 



Truckee, Lake Tahoe, Nevada 



James, Richmond, Virginia 



Delaware, Trenton, New Jersey 



Ottawa, Montreal, Canada 



9. 18500 

 4.68500 

 2 . 83400 

 2.13400 

 I . 23400 

 I . 06600 

 I . 00400 

 0.79400 

 0.55100 

 0.39800 

 0.36150 

 0.30600 

 0.24475 



0.23200 

 0.19526 

 o. 17800 

 0.18450 

 o. 18000 

 o . 16990 

 o. 16800 

 0.16055 

 0. 15760 

 0.15250 

 o. 14238 

 0.13786 

 0.13267 

 o. 1 1484 



o. 10971 

 0.08433 

 0.07400 

 0.07300 

 0,07246 



0.06795 

 0.06II6 



0.73S72 

 0.23472 

 o . 40999 

 0.27273 

 0.09193 

 o. 10170 

 o. 14889 

 0.06034 

 0.07102 



0.07375 



0.04890 

 0.05580 

 0.01750 



0.05869 

 0.04170 

 0.04870 

 0.04320 

 0.02280 

 0.03720 



0.03377 

 0.03233 

 0.01633 

 0.03180 



0.02220 

 0.02987 

 0.01459 

 0.01279 



0.0264s 

 0.00905 

 O.OIOOI 

 0.00930 

 0.01284 



O.OIIO4 

 0.00992 



0.03307 



o. 1 1609 

 o. 10259 

 0.08024 

 0.03319 



0.02175 



0.05432 

 0.01326 

 0.04402 



0.00674 

 0.0058s 

 0.00123 

 o . 00690 

 o . 00465 

 0.00280 

 0.00404 



0.00I2I 



o . 0044^ 



0.00336 

 0.00361 



o . 00300 



0.00377 



0.00435 

 O.OOI6I 



The following table gives the total salinity of a number of addi- 

 tional rivers, as quoted by Penck (26: ^oq) and Clarke (4). 



35 

 36 

 37 

 38 

 39 

 40 



41 



42 

 43 

 44 

 45 

 46 



47 

 48 



Tabic SJiozving Total Salinity of Other Rivers. 



Permille. 



Rio Saladillo, Argentine 1-213 



Cheliflf near Orleansville, Africa o. 780 



Colorado River, Argentine, South America 0.651 



Thames, above London (average) 0.289 



Elbe, above Hamburg 0. 237 



Nile at Cairo 0.231 



La Plata, near Buenos Ayres o . 206 



Vistula, near Culm 0.201 



Dwina, Russia o. 187 



Danube at Btidapest (average) 0.187 



Rhone at Lyons (average) o . 145 



Rio Negro, above Mercedes, South America o 132 



Parana, 5 miles above its entry into La Plata o . 098 



La Plata, 5 miles above Buenos Ayres 0.091 



