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臺灣中央山脈横斷記
The Forest Policy Archive
臺灣總督府殖産局附属林業試驗場要覽
The Forest Policy Archive
静岡縣砂防事業沿革誌
The Forest Policy Archive
山林經濟 : 全
The Forest Policy Archive
岐阜縣林産物一班
The Forest Policy Archive
樺太國有林經營概要
The Forest Policy Archive
小笠原島ノ護謨樹フイカス,エラスチカ苗ノ取木蕃殖法
The Forest Policy Archive
On the Fineness of the 800 Standard Silver Bar
Source materials for Engineering History: The University of Tokyo Digital Archive
The Relation Between the Horse Power and the Weight of an Engine
Source materials for Engineering History: The University of Tokyo Digital Archive
Column of Uniform Strength
Source materials for Engineering History: The University of Tokyo Digital Archive
Die transversale Festigkeit der Drahtkanonen
Source materials for Engineering History: The University of Tokyo Digital Archive
Graphical Study of the Centrifugal Pump
Source materials for Engineering History: The University of Tokyo Digital Archive
Torsion Test of Hollow Circular Bar
Source materials for Engineering History: The University of Tokyo Digital Archive
ドイツの侵略意志∽644
Digital Cultural Heritage
大正三年十二月
Yuzuru Hiraga Digital Archive
〔水圧試験結果レポート・横須賀海軍工廠造船部造船工場〕
Yuzuru Hiraga Digital Archive
比叡 発射時ニ於ケル砲塔内ノ震動調査装置
Yuzuru Hiraga Digital Archive
第四号戦艦 水圧試験成績報告 大正三年二月十二日
Yuzuru Hiraga Digital Archive
六百六十五噸駆逐艦鉸鋲調ベ(図面ニテ)但シフレームヲ除ク 大正三年十一月
Yuzuru Hiraga Digital Archive
〔大正3.6.30付平賀発山本大監宛書翰:比叡甲鉄ノ件〕他
Yuzuru Hiraga Digital Archive