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On Vibration of Steamers
Source materials for Engineering History: The University of Tokyo Digital Archive
The Action of Acids in the Enzymic Decomposition of Oil by Castor Seeds
Source materials for Engineering History: The University of Tokyo Digital Archive
坪井正五郎留守宅(宛) ∽4-11-09
Digital Cultural Heritage
坪井正五郎留守(宛)∽4-11-10
Digital Cultural Heritage
明治四十三年四月十八日 将官会議列席者〔ほか〕
Yuzuru Hiraga Digital Archive
A.C.
Yuzuru Hiraga Digital Archive
〔説明書?〕
Yuzuru Hiraga Digital Archive
H.M.S. "THUNDERER" Record of Weights Taken While Building.
Yuzuru Hiraga Digital Archive
Bethlehen special protective plates. 四十三年十一月 □内小監報告
Yuzuru Hiraga Digital Archive
Area of Rudders.
Yuzuru Hiraga Digital Archive
軍艦筑摩矢矧用三吋半甲鉄板試験成績表
Yuzuru Hiraga Digital Archive
〔軍艦要目〕
Yuzuru Hiraga Digital Archive
〔書翰〕〔発〕磯崎 〔宛〕平賀 譲
Yuzuru Hiraga Digital Archive
〔書翰〕〔1910.5.2〕消印 〔発〕東海勇蔵 〔宛〕平賀 譲
Yuzuru Hiraga Digital Archive
〔書翰〕〔発〕章 〔宛〕平賀 譲
Yuzuru Hiraga Digital Archive
〔書翰〕〔発〕九郎 〔宛〕平賀 譲
Yuzuru Hiraga Digital Archive
〔書翰〕〔発〕九郎他 〔宛〕平賀 譲
Yuzuru Hiraga Digital Archive
英国駐在小野寺機関大尉報告(明治四拾参年九月三十日附)
Yuzuru Hiraga Digital Archive
清水造船監督官 英国新造艦艇見学記事(明治四拾三年八月六日附)
Yuzuru Hiraga Digital Archive
〔書翰〕〔発〕石渡杉吉 〔宛〕平賀 譲
Yuzuru Hiraga Digital Archive