"The Wave Theory" - On Intaglio No.21

"The Wave Theory" - On Intaglio No.10

"The Wave Theory" - On Intaglio No.28

"The Wave Theory" - On Intaglio No.13

"The Wave Theory" - On Intaglio No.17

Wave Theory: Concerning Intaglio No.33

Wave Theory --Concerning intaglio No.22

Wave Theory: Concerning Intaglio No.12

Wave Theory: Concerning Intaglio No.28

Wave Theory --Concerning intaglio No.4

Chizu o megutte

短篇小説をめぐって　（座談会）

歌集『春闘』をめぐって

Male competition of the field cricket

Shoukokumin bunka o megutte

Tetraneura triangula fighting for incipient gall

Report on Osaka works. Report No. 38t(21), USSBS Index Section 2

武蔵国小野牧をめぐって

The Far East : an illustrated fortnightly newspaper vol.1 no.21

Court Exh. No. 2229A: Excerpt from Exhibit for identification No. 2229. Address of Baron Kiichiro HIRANUMA, Prime Minister on Jan 21, 1939. Tokyo Gazette No. 21, Mar 1939

The Sado Hospital, equipped with the newest medical facilities, opened on October 21, 10th Year of Showa

Shichou no hamon o nagamete

Mariko, No. 21 from the series Fifty-Three Stations of the Tōkaidō (Tōkaidō gojūsan tsugi no uchi)

Kyuushuu no jinja o megurite

Court Exh. No. 2741: Premier Konoye's Address at the 76th Session of the Imperial Diet, on 21 Jan 1941