ELECTROMETER.

PLATE CC.

Fig. 1.

Fig. 1: A detailed cross-section of a cylindrical component of an electroscope. It shows a central vertical axis with various internal and external parts labeled with letters: E at the top, C and D on the upper flange, H and G on the inner flange, M and N on the lower flange, and a central hole labeled O.

Fig. 2.

Fig. 2: A simple rectangular block representing a base or support. It is labeled with O at the top and A and B at the bottom.

Fig. 3.

Fig. 3: A small, dome-shaped component, possibly a stopper or a small electrode, labeled with E at the top and F at the base.

Fig. 4.

Fig. 4: A long, thin rod or wire, likely a conductor, which terminates in a small spherical ball at the top and a larger, flared, bell-shaped component at the bottom.

Fig. 6.

Fig. 6: A large, detailed diagram of a vertical electroscope. It features a long vertical rod with a scale marked from 1 to 10. The top is labeled C, and the bottom is labeled D. A horizontal arm extends from the side, with labels V, N, K, and L. A small bulb is labeled M. The base is labeled B and E. A small hook is labeled F.

Fig. 8.

Fig. 8: A vertical rod with a spherical ball at the top. A horizontal arm extends from the side, ending in a small sphere. A circular scale or dial is attached to the rod, with a pointer. The rod is labeled N.

Fig. 7.

Fig. 7: A diagram showing a central point with numerous small dots radiating outwards in all directions, representing an electric discharge or a field of particles.

Fig. 5.

Fig. 5: A small, conical or funnel-shaped component, possibly a collector or a shield.

Fig. 9.

Fig. 9: A complex diagram of a circular apparatus, possibly a Faraday cage or a specialized electroscope. It includes a central vertical rod labeled G, a horizontal arm labeled T, and various internal components labeled with letters like P, C, N, B, and Z. A small sphere is at the top, and a larger sphere is on the right.
A blank, aged page with a light beige background, showing faint, illegible markings and a vertical line near the right edge.This image shows a blank, aged page with a light beige or cream-colored background. The paper has a slightly textured appearance with some minor discoloration and faint, illegible markings scattered across the surface. A prominent vertical line or crease is visible near the right edge of the page. There are no discernible figures, text, or illustrations.

ELECTROMETER.

PLATE CCI.

Fig. 10. A large electrometer apparatus with two vertical columns (M, N) and a horizontal base (O, P). It features two horizontal rods (A, B, C, D) with spheres at the ends. Various components are labeled: F, G, H, I, K, L, Q, R, S, T, U, V, W, X, Y, Z, AA, BB, CC, DD, EE, FF, GG, HH, II, JJ, KK, LL, MM, NN, OO, PP, QQ, RR, SS, TT, UU, VV, WW, XX, YY, ZZ.

Fig. 10.

Fig. 11. A vertical glass tube (A) with a stopper (B) and a bulb (C) at the bottom. The tube is mounted on a cylindrical base (D). A wire (E) is inserted through the tube, and a small sphere (F) is suspended from it. The base has a scale (G) and a small cup (H).

Fig. 11.

Fig. 12. A vertical assembly consisting of a top cap (A), a central rod (B), and a base (C). The base is a thick wooden cylinder (D) with a central hole (E). Below it is a smaller wooden cup (F). The components are labeled with letters A through F.

Fig. 12.

Fig. 13. A horizontal rod (A) with a sphere at one end (B) and a small cup (C) at the other. A vertical rod (D) is positioned in front of the cup, with a small sphere (E) at its top. The components are labeled with letters A through E.

Fig. 13.

Fig. 14. A long, thin horizontal rod (A) with a small sphere (B) at one end.

Fig. 14.

Fig. 15. A vertical assembly consisting of a top cap (A), a central rod (B), and a base (C). The base is a thick wooden cylinder (D) with a central hole (E). Below it is a smaller wooden cup (F). The components are labeled with letters A through F.

Fig. 15.

Fig. 16. A geometric diagram showing a vertical line (A) with points B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z. A horizontal line (A) connects points B and C. A curve (A) is drawn between points B and C. A triangle (A) is formed by points B, C, and D. A circle (A) is centered at point C. The diagram is labeled with letters A through Z.

Fig. 16.

Architectural drawing of a classical column and a large rectangular frame.This architectural drawing shows a single classical column on the left, featuring a fluted shaft and a decorative capital. To its right is a large rectangular frame, possibly representing a wall or a structural element. The frame is supported by two vertical columns and has a horizontal beam at the top. A horizontal line extends from the top of the frame to the right, ending in a small, decorative element.
Architectural drawing of a structural frame, a column with a capital, and two cylindrical objects.This architectural drawing depicts a structural frame on the left, consisting of a horizontal beam supported by two vertical columns. A diagonal line connects the top of the left column to the bottom of the right column, forming a triangular structure. To the right of this frame is a single classical column with a fluted shaft and a decorative capital. Further to the right are two cylindrical objects, one above the other, which appear to be architectural components like capitals or bases. The entire drawing is rendered in a light, sketchy style on aged paper.