The instrument measuring illuminance was manufactured by Tokyo Electric Power Company. The inside of the leather sheath is printed with “Second Lecture on Botany,” presumed to be the instrument used by the Second Lecture on Botany, Faculty of Science and Agriculture of Taihoku Imperial University. The instrument eventually found its way to Professor Chen Yi-Ming of the Institute of Plant Biology and was donated to the NTU History Gallery.

Due to the direct and diffuse requirements of solar radiation observation in meteorology, it is presumed that this instrument can measure the intensity of ultraviolet light by introducing direct light into the beam splitter (filter) through the bracket. A clock and a compass are also attached so that the instrument can accurately track the direction of sunlight. A paper label stating ” Science and Agriculture Cl.828 No.1” is affixed to the wooden box, and the word “meteorology” is marked on the instrument. It is presumed to have been used by the Agricultural Meteorology Lecture of Faculty of Science and Agriculture of Taihoku Imperial University. The instrument was subsequently taken over by the Department of Physics of National Taiwan University, and was donated to the NTU History Gallery by Professor Cheng Poh-Kun.

The analytical weight box was property to the Third Lecture on Botany at the Faculty of Science of Taihoku Imperial University with Professor Yoshikawa as the Chair Professor. The analytical weight box eventually found its way to Professor Chen Yi-Ming of the Institute of Plant Biology and was donated to the NTU History Gallery. The weights and plate weights bear the seal of approval of the Governor-General in the form of an emblem of “two inverted triangles with four legs each.”

The voltmeter is a device for measuring voltage manufactured by “CAMBRIDGE INSTRUMENT CO.LTD ENGLAND.” The wooden box has a metal tag marking “Science and Agriculture Cl.47 No.48” and a sticker of “Second Lecture on Botany.” It is presumed to be the instrument used by the Faculty of Science and Agriculture of Taihoku Imperial University. The instrument eventually found its way to Professor Chen Yi-Ming of the Institute of Plant Biology and was later donated to the NTU History Gallery.

The instrument was manufactured by “Shimadzu Corp.” in Kyoto, Japan. Invented in 1933 by Dr. Itano Arao of Agronomy, it is a portable device for measuring the pH value of samples. It is widely used in the measurement of soil pH value in agricultural research. The instrument was property to the Third Lecture on Botany at the Faculty of Science of Taihoku Imperial University , and eventually found its way to Professor Chen Yi-Ming of the Institute of Plant Biology and was donated to the NTU History Gallery.

The Abbe’s Drawing Apparatus (Produced by Ernst Leitz Wetzlar in Germany) is mainly used as an auxiliary tool for drawing and observing samples under a microscope. The special prism allows the observer to superimpose the paper used for drawing and the sample in the line of sight, facilitating the drawing process of the sample. There is a metal tag with “ the school of Agriculture and Forestry of Taihoku Imperial University Cl.142 No.1” and the word “brewing” written on the outer box of the instrument. It is presumed to be the instrument used by the school of Agriculture and Forestry of Taihoku Imperial University and the Brewing Lecture of the Faculty of Science and Agriculture of Taihoku Imperial University.

The tape measure dates back to the Japanese colonial period, with the words “The Empire of Japan” and “Made by the Governor-General of Taiwan” engraved on the case. In the meantime, the text “Cl.129 No.40” is marked in black lacquer on the front, which is the property code format of Taihoku Imperial University. In the center of the front is a metal knob with an inscribed emblem of “two inverted triangles with four legs each (the seal of approval of the Governor-General’s system of measurement units). The tape measure eventually found its way to Professor Chen Yi-Ming of the Institute of Plant Biology and was donated to NTU History Gallery.

The instrument pierces the objects and creates screw thread for screws. There is a sticker on the wooden box with “Second Lecture on Botany” and a metal tag stating “Science and Agriculture Cl.474 No.4.” It is presumed to have been used by the Second Lecture on Botany at the Faculty of Science and Agriculture of Taihoku Imperial University. It eventually found its way to Professor Chen Yi-Ming of the Institute of Plant Biology and was donated to the NTU History Gallery.