REPORT OF THE DIRECTOR AND STATE GEOLOGIST 1900 rl5 



Report of abrasion tests 



Test no. 



Sample 



1 Con Mill & Foss, Eockland Lake 



2 " " 



3 J. S. Lane & Son, Weehawken N. J. 



4 F. E. Conley, B, Munnsville 



5 F. E, Conley, A, Higginsville 



6 " " 



7 A. L. Swett iron works, Medina 



8 " " 



9 Whitmore, Rauber & Vicinus, Rochester 



10 '' '' 



11 Isaac Wagar, Saratoga Springs 



12 '< '' 



13 Helderberg cement co. Howe Cave 



14 «* *' 



15 |^Tomkin3 Cove stone co. Tomkins Cove 



16 " " 



17 Barber asphalt paving co. Buffalo 



18 " '' 



19 Brown & Fleming, Verplanck 



20 " " 



21 Buffalo cement co. limited, Buffalo 



22 " *' 



23 C. Worlock, Perry ville 



24 <' *' 



25 C. B. Whitmore, Lockport 



26 '' " 



21 W. T. Smith, Sharon Springs 



28 «' '' 



29 The Carpenter Bros. Co. Guttenberg N. J. 



30 '^ '' 



31 Newark lime and cement co. Rondout 



32 Mohawk Valley stone co. Palatine Bridge 



33 Dwight Babcock, Waterloo 



34 «' " 



85 F. E. Conley, C, Oriskany Falls 



36 " '' 



37 R. Dunlop & Co. Jamesville 



38 " " 



39 Callanan road impt. co. South Bethlehem 



40 ^' " 



41 Chazy marble lime co. Chazy 



42 '^ " 



43 Round Island granite 



(Daniel E. Donovan, New York) 



44 A. Shear & Co. Schenectady 



45 Hudson Riv. stone sup. co. New Hamburg 



46 «• " 



ABRASION 



Coeffi- Percent 

 cient 



Kemarks 



16.81 



2.38 



diabase (trap) 



14.9 



2.68 



(( 



14.39 



2.78 



'/ 



9.08 



4.4 



limestone 



8.09 



4.94 



sandstone 



9.08 



4.4 



a 



9.64 



4.15 



(( 



9.08 



4.4 



' a 



13.44 



2.98 



limestone 



1L84 



3.38 



i( 



9.38 



4.26 



u 



9.97 



4.01 



a 



6.32 



6.32 



<4 



6.41 



6.24 



<< 



5.42 



7.37 



(( 



4.91 



8.11 



it 



8.68 



4.6 



ii 



8.82 



4.53 



(( 



7.04 



5.68 



(( 



6.22 



6.33 



(( 



9.67 



4.13 



ei 



8.38 



4.78 



(I 



6.78 



5.89 



(( 



6.97 



5.74 



i( 



11.43 



3.5 



sandstone 



11.58 



3.46 



(i 



7.18 



5.58 



limestone 



7.41 



5.4 



u 



15.99 



2.56 



diabase (trap) 



14.55 



2.75 



li 



9.21 



4.34 



limestone 



9.13 



4.38 



(( 



8.2 



4.88 



11 



7.98 



5.01 



a 



10.22 



3.91 



(t 



10.3 



3.88 



11 



7.77 



5.15 



u 



7.63 



5.24 



u 



9.22 



4.34 



<< 



9.12 



4.39 



<( 



7.8 



5.13 



IC 



8.01 



5 



il 



12.51 



3.2 



granite 



9.04 



4.43 



sandstone 



13.01 



3.17 



limestone 



13.35 



3 



li 



