OMISSION

O M I S S I O N.

By an accident the following Explanations were omitted at their proper place, viz. at the end of Part I. of CHEMISTRY, p. 455.

Plate CXXXIII. fig. 1. shows the figure of the still recommended by Dr Black; the bottom formed in such a manner as to go into his furnace. A, the body; B, the head; C C, the tube conveying the steam into the worm; D F, the figure of the worm; E, the worm-tub.

Fig. 2. A head taller than the common, proper for rectifying ardent spirits.

Fig. 3. Another kind of still for a common furnace, having a concave bottom for receiving the flame. A, the body; B, the head.

Fig. 4. Papin's digester. See CHEMISTRY, n^o 567. A, the body; B B, the cross-bars; C D, the screw; E, the lid.

Fig. 5. The outer case of Dr Black's furnace without the luting. A, the body; B, the feet; I G, the opening at top.

Fig. 6. C, the grate of the same, with four projections, having holes in them to fasten it by nails to the inside of the furnace.

Fig. 7. A crooked funnel for putting matters into a retort without touching the sides or neck.

Fig. 8. Dr Black's furnace put together in readiness for chemical operations. A, the mouth; B, the chimney; C, the door of the ash-hole. E, the registers for admitting air.

Fig. 9. A section of the same, showing its inside structure. F, the top-cover; G, the body, with part

of the grate; D, the receptacle for the ashes; C, its door; E, the registers.

Fig. 10. An iron support for a crucible.

Fig. 11. The figure of a crucible.

Plate CXXXIV. fig. 1. Dr Boerhaave's portable furnace. See CHEMISTRY, n^o 600.

Fig. 2. Macquer's melting-furnace. AA, the door of the ash-pit; B, the space betwixt the top of the ash-pit and fire-place; D C, the bars; G H E F, the fire-place; I, the funnel. Ibid. 2d n^o 605.

Fig. 3. Dr Lewis's portable furnace fitted with a still. Ibid. n^o 601, 602.

Fig. 4. Shows the figure of retorts of different kinds. A, the body; B, the neck.

Fig. 5. A matras and alembic head, with a cucurbit and alembic head made of one piece. A, the body; B, the long neck of the matras; C, the alembic head. A, the body of the cucurbit; B, the head; C, an opening in the head for putting in the matter to be distilled; D, a glass stopple fitted to the opening just mentioned; E, the opening of the cucurbit mouth.

Fig. 6. The pelican and cucurbit, now in disuse. A, the body of the pelican; B, the head; C, an opening fitted with a stopple; D D, the arms. A, the body of the cucurbit; B, the head; C, the neck; D, the spout.

Fig. 7. A row of adopters or aludels.

Fig. 8. Dr Lewis's lamp-furnace. Ibid. n^o 611.

E R R A T A.

Page 127. col. 1. line 10. For flint stones, read flat stones.
col. 2. l. 20. For Sloppo, read Hoppo.

IN THE NOTES ON CHEMISTRY.

N^o 55. For partly the pressure, read partly by the pressure.

109. For exsecution, read extrication.

140. For the now existence, read nonexistence.

147. For coming, read derived.

223. For continuation, read combination.

423. For attestation of the density, read alteration of the density.

559. For frigidty, read fragility.

904. For phlogistic acid, read phosphoric acid.

922. For sublimes charcoal, read sublimes with charcoal.

927. For continued with, read combined with.

1227. For curious mercurius, read curious mercuries.

1398. For general vision, read general division.

Page 452. col. 1. l. 20. from the top. For "HH," read "CE."

l. 23. from the top. For "E," read "D."

l. 25. For "DD," read "E."

col. 2. l. 31. from the top. For "fig. 7. and 8." read "fig. 8. and 9."

On the margin of col. 1. under note 2d 602, insert "Plate CXXXIII. fig. 5, 8, 9."

Page 454. col. 2. on the margin. For "fig. 8." read "Plate CXXXIV. fig. 8."

* * In the System of CHEMISTRY, though an Appendix is added containing the more recent discoveries in that Science; yet as some others occurred still later, it was found necessary to insert them in the Index, where they are to be found under the articles Nitre, Phosphorus, Sugar, Tartar, and Vegetables.

DIRECTIONS FOR PLACING THE PLATES OF VOL. IV.

Plate	Page	Plate	Page
CXII to face	140	CXXV.	169
CXIII	57	CXXVI.	172
CXIV	80	CXXVII.	237
CXV	84	CXXVIII.	264
CXVI	96	CXXIX.	300
CXVII.	100	CXXX.	305
CXVIII.	104	CXXXI.	308
CXIX.	108	CXXXII.	437
CXX.	112	CXXXIII.	441
CXXI.	141	CXXXIV.	455
CXXII.	144	CXXXV.	740
CXXIII.	148	CXXXVI. }	773
CXXIV.	149	CXXXVII. }	598
The whole-sheet Chemical Table

[In all, 26 Plates.]

TABLE OF CONTENTS

Page	Contents	Page	Contents
1	CRIST	100	CRIST
2	CRIST	101	CRIST
3	CRIST	102	CRIST
4	CRIST	103	CRIST
5	CRIST	104	CRIST
6	CRIST	105	CRIST
7	CRIST	106	CRIST
8	CRIST	107	CRIST
9	CRIST	108	CRIST
10	CRIST	109	CRIST
11	CRIST	110	CRIST
12	CRIST	111	CRIST
13	CRIST	112	CRIST
14	CRIST	113	CRIST
15	CRIST	114	CRIST

[End of Table]

This image shows a blank, aged, cream-colored page, likely an endpaper or flyleaf from an old book. The paper has a slightly textured appearance with some minor discoloration and faint smudges, particularly along the right edge. There is no text or other markings on the page.

This image shows a blank, aged, cream-colored page, likely an endpaper or flyleaf from an old book. The paper has a slightly textured appearance with some minor discoloration and faint smudges. A small, dark, circular spot is visible near the top center of the page. The overall tone is warm and yellowish, characteristic of old paper.

This image displays a classic marbled paper pattern, often used for book covers or decorative endpapers. The design is characterized by a complex, organic interplay of colors and textures. The primary palette consists of various shades of brown, ranging from light tan to deep chocolate, which form the background and the swirling veins. Interspersed within these brown areas are patches of dark, almost black, speckles and larger, irregular blotches of a muted blue-grey tone. The overall effect is reminiscent of natural stone, such as marble or slate, or perhaps the grain of a piece of wood. The pattern is dense and covers the entire surface, with no visible text or other graphical elements.