94 



A. M. Mayer — Researches in Acoustics. 



Bar. 



T. 



I 



t. 



t 



D. 



2-7027 



N. 



1-0279^ 

 511423 





M 



Aluminum 



0-4 



21-612 



•55176 



•0011813 



62100 



720621232 



720-6 xlO 6 



(American). 



20 



21-622 



•55200 



•0011807 



2-6990 



618-10 



509032 



712929083 



712-9 xlO 6 





45 



21-6346 



•55232 



•0011800 



2-6943 



61390 



505993 



703215278 



703-2 xlO 6 





60 



21-6422 



•55250 



•0011796 



2-6915 



611-60 



504516 



698390199 



698-4 xlO 6 





82 



21-654 



•55278 



•0011789 



2-6874 



607-88 



501447 



688868686 



688-8 xlO« 





99-5 



21-662 



•55300 



•0011785 



2-6840 



604-71 



499247 



681974176 



681-9 xlO 6 



Aluminum 



0-5 



20*0170 



•49914 



•0012457 



2-7306 



650-00 



507632 



717306505 



713-0 xlO 6 



(French). 



20 



20-0253 



•49930 



•0012451 



2-7270 



646-60 



505375 



710002959 



710-0 xlO 6 





40 



200340 -49950 



•0012445 



2-7232 



642-78 



502388 



700672761 



700-6 xlO 6 





605 



20-04281 -49965 



•0012438 



2-7x94 



639-19 



499977 



692975831 



692-9 xlO 6 





81 



20-0518 -49980 



•0012430 



27156 



635-50 



497477 



685124447 



685-1 xlO 6 





100 



200600 -50000 



•0012425 



2-7120 



632-00 



494734 



676700317 



C76-7xl0 8 



Silver. 



0-3 



17-2176 



•4614 



•0015564 



10-5142 



437-93 



273736 



803135399 



803-1 xlO 6 





20 



17-2250 -46158 



•0015557 



10-5022 



43735 



273489 



800762642 



800-7 xlO 6 





30 



17-2284 1 -46168 



•0015554 



10 4962 



436-80 



273201 



798729900 



798-7 xlO 6 





40 



17-2316 -46176 



•0015551 



10-4900 



435-80 



272626 



794797589 



794-8 xlO 6 





60 



17-2380 -46194 



•0015545 



10-4778 



433-00 



270979 



783307979 



783-3 xlO 6 



Zinc. 



0-3 



18-2094 -44517 



•0013426 



6-8130 



559 84 



405663 



1142925404 



1143 xlO 6 





20 



18-2200 -44534 



•0013415 



6-8010 



557-84 



404501 



1134426237 



1134 xlO 6 





40 



18-2308 -44552 



•0013405 



6-7890 



55376 



401844 



1117556599 



Ill7xl0 6 





50-5 



18-2364! -44560 



•0013399 



6-7826 



551-22 



400294 



1107903320 



1108 xlO 6 





62 



18-2426 



•44570 



•0013390 



6-7758 



543-61 



394291 



1073843790 



1074 xlO 6 



St. Gobain 



0-3 



23-496 



•74898 



•0013566 



2-5452 



75065 



538313 



751865836 



751-8 xlO 6 



Glass. 



24-5 



23501 



•74902 



•0013562 



25436 



749-67 



537769 



749885431 



749-8 xlO 6 





40 



23-503 



•74910 



■0013561 



2-5424 



749 12 



537403 



788511034 



7485 xlO 6 





60 



23-507 



•74922 



•0013558 



2-5411 



748-35 



536909 



746742620 



746-7 xlO 6 





80 



23-510 



•74934 



•0013557 



2-5397 



747-62 



536497 



745196510 



745-2 x 10 6 





99-5 



23514 



•74945 



•0013551 



2-5384 



746-70 



535955 



743311215 



743-3 xlO 6 



Table IV. - 

 Variation of Modulus of Elasticity with change of Temperature. 

 In this table the modulus of each substance is taken as 100 at 0°. In comput- 

 ing this table the moduli taken were those obtained from the curves passing 

 through the mean positions of the points determined by the experiments. The 

 results contained in this table are expressed graphically in fig. 5. 



T. 



J.&C. 

 Steel. 



Steel 

 No. 3. 



Steel 

 No. 4. 



Steel No. 5. 



Bessemer 

 Steel. 



Brass. 



Bell 

 Metal. 



0° 



100-00 



100-00 



100-00 



100-00 



100-00 



100-00 



10000 



20° 



99-61 



99-57 



99-70 



99 58 



99-53 



99-26 



99-03 



40° 



99-25 



99-10 



99-31 



99-10 



98-99 



98-51 



98-09 



60° 



98-87 



98-58 



98'8 



9954 



98-35 



97-76 



97-21 



80° 



98-42 



98-00 



98-22 



97-98 



97-63 



97-03 



96-38 



100° 



97-76 



97-34 



97-54 



97-35 



96-91 



9627 



95-70 





Aluminum 

 (Amer.). 



Aluminum 

 (French). 



Silver. 



Zinc. 



St. Gob. 

 Glass. 







0° 



100-00 



100-00 



100-00 



100-00 



100-00 







20° 



98-92 



98-86 



99-73 



99'26 



99-88 







40° 



97-83 



97-73 



98-97 



97'78 



99-76 







60° 



96-75 



9658 



97-53 



93-96(62°) 



99-53 







80° 



95-67 



95-42 







99-30 







100° 



94-59 



94-31 











98-84 







