div class=ts-pagebutton class=gotoPage data-page=1Page 1button div class=ts-imageimg data-url=sitesfas-phys191rreferencese1pellam1949pdf-fig-10-second-sound-pulseshtmlpage=1 data-page=1 class=ts-thumb lazyload alt=Page 1: sitesfasharvardedusitesfasharvardedu~phys191rReferencese1pellam1949pdf · FIG 10 Second sound pulses showing primary signal plus first echo data of June 11 1948 Temperature loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader033vdocumentinreader033viewer202206092160ad0c562753cc6bc356a4d4html5thumbnails1jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=2Page 2button div class=ts-imageimg data-url=sitesfas-phys191rreferencese1pellam1949pdf-fig-10-second-sound-pulseshtmlpage=2 data-page=2 class=ts-thumb lazyload alt=Page 2: sitesfasharvardedusitesfasharvardedu~phys191rReferencese1pellam1949pdf · FIG 10 Second sound pulses showing primary signal plus first echo data of June 11 1948 Temperature loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader033vdocumentinreader033viewer202206092160ad0c562753cc6bc356a4d4html5thumbnails2jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=3Page 3button div class=ts-imageimg data-url=sitesfas-phys191rreferencese1pellam1949pdf-fig-10-second-sound-pulseshtmlpage=3 data-page=3 class=ts-thumb lazyload alt=Page 3: sitesfasharvardedusitesfasharvardedu~phys191rReferencese1pellam1949pdf · FIG 10 Second sound pulses showing primary signal plus first echo data of June 11 1948 Temperature loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader033vdocumentinreader033viewer202206092160ad0c562753cc6bc356a4d4html5thumbnails3jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=4Page 4button div class=ts-imageimg data-url=sitesfas-phys191rreferencese1pellam1949pdf-fig-10-second-sound-pulseshtmlpage=4 data-page=4 class=ts-thumb lazyload alt=Page 4: sitesfasharvardedusitesfasharvardedu~phys191rReferencese1pellam1949pdf · FIG 10 Second sound pulses showing primary signal plus first echo data of June 11 1948 Temperature loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader033vdocumentinreader033viewer202206092160ad0c562753cc6bc356a4d4html5thumbnails4jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=5Page 5button div class=ts-imageimg data-url=sitesfas-phys191rreferencese1pellam1949pdf-fig-10-second-sound-pulseshtmlpage=5 data-page=5 class=ts-thumb lazyload alt=Page 5: sitesfasharvardedusitesfasharvardedu~phys191rReferencese1pellam1949pdf · FIG 10 Second sound pulses showing primary signal plus first echo data of June 11 1948 Temperature loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader033vdocumentinreader033viewer202206092160ad0c562753cc6bc356a4d4html5thumbnails5jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=6Page 6button div class=ts-imageimg data-url=sitesfas-phys191rreferencese1pellam1949pdf-fig-10-second-sound-pulseshtmlpage=6 data-page=6 class=ts-thumb lazyload alt=Page 6: sitesfasharvardedusitesfasharvardedu~phys191rReferencese1pellam1949pdf · FIG 10 Second sound pulses showing primary signal plus first echo data of June 11 1948 Temperature loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader033vdocumentinreader033viewer202206092160ad0c562753cc6bc356a4d4html5thumbnails6jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=7Page 7button div class=ts-imageimg data-url=sitesfas-phys191rreferencese1pellam1949pdf-fig-10-second-sound-pulseshtmlpage=7 data-page=7 class=ts-thumb lazyload alt=Page 7: sitesfasharvardedusitesfasharvardedu~phys191rReferencese1pellam1949pdf · FIG 10 Second sound pulses showing primary signal plus first echo data of June 11 1948 Temperature loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader033vdocumentinreader033viewer202206092160ad0c562753cc6bc356a4d4html5thumbnails7jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=8Page 8button div class=ts-imageimg data-url=sitesfas-phys191rreferencese1pellam1949pdf-fig-10-second-sound-pulseshtmlpage=8 data-page=8 class=ts-thumb lazyload alt=Page 8: sitesfasharvardedusitesfasharvardedu~phys191rReferencese1pellam1949pdf · FIG 10 Second sound pulses showing primary signal plus first echo data of June 11 1948 Temperature loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader033vdocumentinreader033viewer202206092160ad0c562753cc6bc356a4d4html5thumbnails8jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=9Page 9button div class=ts-imageimg data-url=sitesfas-phys191rreferencese1pellam1949pdf-fig-10-second-sound-pulseshtmlpage=9 data-page=9 class=ts-thumb lazyload alt=Page 9: sitesfasharvardedusitesfasharvardedu~phys191rReferencese1pellam1949pdf · FIG 10 Second sound pulses showing primary signal plus first echo data of June 11 1948 Temperature loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader033vdocumentinreader033viewer202206092160ad0c562753cc6bc356a4d4html5thumbnails9jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=10Page 10button div class=ts-imageimg data-url=sitesfas-phys191rreferencese1pellam1949pdf-fig-10-second-sound-pulseshtmlpage=10 data-page=10 class=ts-thumb lazyload alt=Page 10: sitesfasharvardedusitesfasharvardedu~phys191rReferencese1pellam1949pdf · FIG 10 Second sound pulses showing primary signal plus first echo data of June 11 1948 Temperature loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader033vdocumentinreader033viewer202206092160ad0c562753cc6bc356a4d4html5thumbnails10jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=11Page 11button div class=ts-imageimg data-url=sitesfas-phys191rreferencese1pellam1949pdf-fig-10-second-sound-pulseshtmlpage=11 data-page=11 class=ts-thumb lazyload alt=Page 11: sitesfasharvardedusitesfasharvardedu~phys191rReferencese1pellam1949pdf · FIG 10 Second sound pulses showing primary signal plus first echo data of June 11 1948 Temperature loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader033vdocumentinreader033viewer202206092160ad0c562753cc6bc356a4d4html5thumbnails11jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=12Page 12button div class=ts-imageimg data-url=sitesfas-phys191rreferencese1pellam1949pdf-fig-10-second-sound-pulseshtmlpage=12 data-page=12 class=ts-thumb lazyload alt=Page 12: sitesfasharvardedusitesfasharvardedu~phys191rReferencese1pellam1949pdf · FIG 10 Second sound pulses showing primary signal plus first echo data of June 11 1948 Temperature loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader033vdocumentinreader033viewer202206092160ad0c562753cc6bc356a4d4html5thumbnails12jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=13Page 13button div class=ts-imageimg data-url=sitesfas-phys191rreferencese1pellam1949pdf-fig-10-second-sound-pulseshtmlpage=13 data-page=13 class=ts-thumb lazyload alt=Page 13: sitesfasharvardedusitesfasharvardedu~phys191rReferencese1pellam1949pdf · FIG 10 Second sound pulses showing primary signal plus first echo data of June 11 1948 Temperature loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader033vdocumentinreader033viewer202206092160ad0c562753cc6bc356a4d4html5thumbnails13jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=14Page 14button div class=ts-imageimg data-url=sitesfas-phys191rreferencese1pellam1949pdf-fig-10-second-sound-pulseshtmlpage=14 data-page=14 class=ts-thumb lazyload alt=Page 14: sitesfasharvardedusitesfasharvardedu~phys191rReferencese1pellam1949pdf · FIG 10 Second sound pulses showing primary signal plus first echo data of June 11 1948 Temperature loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader033vdocumentinreader033viewer202206092160ad0c562753cc6bc356a4d4html5thumbnails14jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=15Page 15button div class=ts-imageimg data-url=sitesfas-phys191rreferencese1pellam1949pdf-fig-10-second-sound-pulseshtmlpage=15 data-page=15 class=ts-thumb lazyload alt=Page 15: sitesfasharvardedusitesfasharvardedu~phys191rReferencese1pellam1949pdf · FIG 10 Second sound pulses showing primary signal plus first echo data of June 11 1948 Temperature loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader033vdocumentinreader033viewer202206092160ad0c562753cc6bc356a4d4html5thumbnails15jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=16Page 16button div class=ts-imageimg data-url=sitesfas-phys191rreferencese1pellam1949pdf-fig-10-second-sound-pulseshtmlpage=16 data-page=16 class=ts-thumb lazyload alt=Page 16: sitesfasharvardedusitesfasharvardedu~phys191rReferencese1pellam1949pdf · FIG 10 Second sound pulses showing primary signal plus first echo data of June 11 1948 Temperature loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader033vdocumentinreader033viewer202206092160ad0c562753cc6bc356a4d4html5thumbnails16jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=17Page 17button div class=ts-imageimg data-url=sitesfas-phys191rreferencese1pellam1949pdf-fig-10-second-sound-pulseshtmlpage=17 data-page=17 class=ts-thumb lazyload alt=Page 17: sitesfasharvardedusitesfasharvardedu~phys191rReferencese1pellam1949pdf · FIG 10 Second sound pulses showing primary signal plus first echo data of June 11 1948 Temperature loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader033vdocumentinreader033viewer202206092160ad0c562753cc6bc356a4d4html5thumbnails17jpg width=140 height=200 divdiv