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Dentist, the first use of ether for anesthesia in dental surgery, 1846, Historic, digitally
UMG24A15_324

Dentist, the first use of ether for anesthesia in ...

Medicine, Anatomy
UMG23A66_096

Medicine, Anatomy

Ether-Powership of Europa 1943
UMG20A40_067

Ether-Powership of Europa 1943

Sending Photos Via Radio Waves
UMG20A13_168

Sending Photos Via Radio Waves

Greenwich Royal Observatory
UMG20A21_486

Greenwich Royal Observatory

Kate Smith Ether Substitute
UMG20A20_482

Kate Smith Ether Substitute