IOWA ACADEMY OF SCIENCES. 



61 



Sec. 13. It shall be the duty of the county auditor in every county to 

 keep a record of all forest and fruit tree reservations within his county. 



Sec. 14. The secretary of the Iowa State Horticultural Society shall be 

 state forestry commissioner, without salary. It shall be his duty to promote 

 the objects of this act, and he shall have power to appoint deputies without 

 salary for each county, or group of counties, who shall assist him, and who 

 shall make an annual report to him of forestry matters and of the operations 

 of this act, within their respective territories. 



(Note. — This bill was subsequently passed by the House, and was favorably reported 

 by the Senate commiltee on horticulture, but did not receive a constitutional majority in 

 the Senate. ) 



ANALYSES OF CERTAIN CLAYS USED FOR MAKING 

 PAVING BRICK FOR CEDAR RAPIDS. 



BY C. 0. BATES. 



The following analyses were made several years ago for 

 Mr. E. P. Boynton, the city engineer of Cedar Rapids. 

 The clays were taken from four companies in Des Moines; 

 each having their plant in a different part of that city. 



CO 



s o 



C-0 .. 

 C— 1 .. 

 C-2... 

 C— 3... 

 C-4 . 

 C— 5 .. 

 C— 6... 

 I— 1.... 

 1-2 . 

 1-3.... 

 1-4.... 

 1-5.... 

 1—6.... 

 I-6J^. 

 I — I . . 

 1-8. .., 

 D— 1... 

 D— 2... 

 D-3 .. 

 D— 4... 

 D— 5... 

 D-6 .. 

 D-7.., 

 D-8... 

 F-1... 

 F— 2... 

 F— 3... 

 F— 4 . 

 F-5 .. 

 F— 6... 

 F— 7... 



.55. 25 

 53. 08 

 61.18 

 (j8.60 

 65. 62 

 51. 35 

 .58. 42 

 55.98 

 81.79 

 (58.50 

 52. 88 

 66.73 

 64.60 

 64.82 

 57.25 

 .53. 05 

 70.29 

 .59. 18 

 64.60 

 64.41 

 63 23 

 76.01 

 67.76 

 .55. 56 

 70.23 

 69.89 

 58.92 

 -50.38 

 62. 70 

 64.31 

 64.03 



1.75 



.94 



.51 



.25 



.42 



1.45 



1.68 



.74 



..52 



1.19 



.,52 



.70 



1.20 



.42 



.90 



1.00 



.80 



1.06 



1.02 



.34 



.32 



1.57 



1.16 



1.59 



.47 



1.05 



.16 

 1.12 



5.07 

 5.73 

 5.01 

 2.80 

 4.10 

 5.42 

 5.40 

 3.73 

 1.27 

 2.82 

 3.28 

 4.92 

 3.74 

 3.10 

 3.02 

 4.40 

 2.18 

 3.80 

 3.95 

 3. 93 

 2.55 

 1.41 

 3. .53 

 4.65 

 1.82 

 1.97 

 4.13 

 3.62 

 4.90 

 5.47 

 3.50 



99.74 

 100.00 

 9t). 42 

 99. 92 

 99.87 

 99.97 

 99.96 

 i>9. 53 

 99. 97 

 99. 81 

 99. 64 

 9i).93 

 100.00 

 100. 02 

 99.76 

 99.85 

 100.00 

 99. 99 

 100.01 

 99.77 

 99.80 

 99.82 

 99.70 

 99.98 

 Oft. 90 

 99.91 

 99. 84 

 99. 78 

 100.09 

 99.93 

 99.60 



