92 



A. M. Mayer — Researches in Acoustics. 



Table II. 

 Table of Analyses, of Densities at 4°, and of Coefficients of Expansion of Bars. 





Iron. 



Carbon 



Silicon 



Phos. 



Sulph. 



Mang. 



Nickel 





J. & c. 



Steel 



98-259 



1-286 



0-015 



0-059 



0031 



0-350 





Density @ 4° 



, 7-827, 



coef t. expan. 



•0000110 



No. 3 



u 



98-788 



0-4:7 



0-15 



0-022 



0-62 







a u 



7-848, 



u 



•0000118 



No. 4 



it 



98628 



051 



0-158 



0-024 



j 0-68 





II u 



7-845, 



u 



•0000120 



No. 5 



u 



95-719 



0-27 



0-101 



0-031 



! 0-69 



3-189 



U (( 



7.851, 



(( 



•0000119 



Bess'r. 



" 



99-03 



0-15 



0-02 



0-09 



0-06 1 0-65 



I 







u « 



7-841, 



<( 



•0000122 



Copper. 64.34 



Zinc _ 34 97 



Lead -58 



Iron -11 



Density _ 8-476 



Coeft. expan -0000185 



Bell Metal. 



Copper 80-08 



Tin. 18-97 



Lead _. -12 



Zinc -49 



Density 8-347 



Coeft. expan -0000187 



Aluminum (Amer.). 

 Aluminum 



. 98-99 



Free Carbon (graphite) 



Combined Carbon 



•19 

 •16 



Tin 



•21 



Silicon 



•32 



Iron 



. -15 



Density 2-702 



Coeft. expan. -0000232 



Aluminum (French). 



Aluminum 97*80 



Carbon with Si *14 



" free '04 



" with Copper -09 



Copper _ 1-29 



Silicon _ __ "64 



Density. 2-730 



Coeft. expan. ._ -000022 



Silver, Pure. Zinc. 



Density 10-512 Zinc 99*75 



Coeft. expan. _ -0000184 Iron.. -10 



Lead -04 



Density _ 6-8107 



Coeft. expan. -0000296 



St. Gobain Glass. 



Silicon 72-3 



Alumina -8 



Lime 15-3 



Soda 11-8 



Density _ 2*545 



Coeft. expan -00000777 (Fizeau.) 



