An Account of the Bell Rock Light-House / Including the Details of the Erection and Peculiar Structure of That Edifice; to Which Is Prefixed a Historical View of the Institution and Progress of the Northern Light-Houses

by Robert Stevenson

Key:
A Course.
B Granite in Pieces.
C Sandstone in Pieces.
D Granite in cubic feet.
E Sandstone in cubic feet.
F Tons of Sandstone and Granite.
G Sandstone Joggles.
H Oak Trenails.
I Oak Wedges in pairs.
J Pozzolano in Barrels.
K Lime in Barrels.
L Sand in Barrels.

A	B	C	D	E	F	G	H	I	J	K	L
1	4	14	6	146	10.891				1.5	2.2	1.1
2	52	71	508	876	101.648	13	246	378	13.6	19.9	10.7
3	52	84	808	1269	152.797	13	246	437	16.9	24.8	13.3
4	52	71	696	1009	125.609	13	246	400	14.5	21.2	11.4
5	53	54	593	849	106.258	13	212	336	12.5	18.3	9.8
6	26	71	492	790	94.275	13	194	270	11.8	17.2	9.2
7	26	58	238	767	73.094	13	168	242	8.3	12.3	6.6
8	26	45	196	547	54.148	13	142	268	7.4	11.0	5.8
9	26	45	264	426	50.737	13	142	229	6.3	9.3	5.0
10	26	45	292	606	65.748	13	142	229	7.6	11.0	5.9
11	26	45	339	363	52.006	13	142	229	6.3	9.3	5.0
12	16	37	160	462	45.308	8	108	184	5.7	8.4	4.5
13	16	37	194	347	39.709	8	108	184	5.0	7.4	3.9
14	16	37	168	329	36.423	8	108	184	4.8	7.0	3.7
15	16	37	188	301	35.962	8	108	184	4.6	6.8	3.6
16	16	37	153	321	34.698	8	108	184	4.7	6.9	3.7
17	16	37	182	308	36.000	8	103	184	4.7	6.9	3.7
18	16	37	153	297	32.983	8	108	184	4.4	6.4	3.4
19	16	37	180	304	35.560	8	108	184	4.5	6.6	3.5
20	16	29	196	308	37.077	8	108	152	4.3	6.3	3.4
21	16	29	211	264	35.088	8	92	152	4.2	6.1	3.2
22	16	29	100	311	29.906	8	92	152	3.9	5.7	3.0
23	16	29	177	238	30.615	8	92	152	3.9	5.7	3.0
24	16	29	147	303	32.951	8	92	152	3.9	5.6	3.0
25	16	29	149	235	28.248	8	92	152	3.5	5.2	2.8
26	6	39	142	250	28.780	8	92	152	3.5	5.2	2.8
27		38		315	22.500	8	79	67	3.0	4.4	2.4
28		33		259	18.500	8	66	58	2.8	4.1	2.2
29		26		236	16.857	8	54	61	2.9	4.2	2.2
30		26		249	17.786	8	52	54	2.4	3.4	1.8
31		25		238	17.000	8	50	68	2.2	3.3	1.8
32		26		274	19.571	8	52	69	2.3	3.3	1.8
33		28		302	21.571	8	56	78	2.6	3.8	2.0
34		30		296	21.143	8	60	80	2.7	4.0	2.1
35		32		271	19.357	8	64	80	3.0	4.5	2.4
36		32		266	19.000	8	64	80	2.5	3.7	2.0
37		32		279	19.929	8	64	80	2.3	3.5	1.8
38		24		275	19.643				1.5	2.2	2.0
39		16		138	9.857				1.2	1.8	1.6
40		16		136	9.714				1.2	1.7	1.5
41		14		133	9.500				1.1	1.6	1.4
42		14		142	10.143				1.1	1.6	1.4
Over,	599	1524	6932	16035	1678.590	338	4065	6329	207.1	303.8	165.4

Course.	Granite in Pieces.	Sandstone in Pieces.	Granite in cubic feet.	Sandstone in cubic feet.	Tons of Sandstone and Granite.	Sandstone Joggles.	Oak Trenails.	Oak Wedges in pairs.	Pozzolano in Barrels.	Lime in Barrels.	Sand in Barrels.
Over,	599	1524	6932	16035	1678.590	338	4065	6329	207.1	303.8	165.4
43		16		140	10.000				1.1	1.6	1.4
44		16		139	9.929				1.2	1.8	1.6
45		16		135	9.643				1.1	1.7	1.4
46		16		132	9.429				1.1	1.6	1.4
47		18		261	18.643	16		64	2.0	3.0	1.5
48		16		118	8.429				1.0	1.5	0.8
49		16		115	8.214				1.0	1.5	0.8
50		14		114	8.143				1.0	1.5	0.8
51		14		123	8.786				0.9	1.4	0.7
52		16		122	8.714				0.9	1.4	0.7
53		16		115	8.214				1.0	1.5	0.8
54		16		113	8.072				1.0	1.5	0.8
55		16		102	7.286				0.9	1.4	0.7
56		18		258	18.428	16		64	2.0	3.1	1.5
57		16		97	6.929				0.9	1.4	0.7
58		16		104	7.429				0.9	1.4	0.7
59		14		96	6.857				0.9	1.4	0.7
60		14		102	7.286				0.7	1.1	0.5
61		16		100	7.143				0.8	1.2	0.6
62		16		97	6.929				0.8	1.3	0.6
63		16		90	6.429				0.7	1.1	0.5
64		16		86	6.143				2.0	3.1	1.5
65		18		228	16.288	16		64	0.6	0.9	0.4
66		16		83	5.929				0.7	1.0	0.5
67		16		82	5.859				0.6	0.9	0.4
68		16		88	6.286				0.4	0.7	0.3
69		12		76	5.429				0.6	0.9	0.4
70		16		74	5.286				0.6	0.9	0.4
71		16		95	6.786				1.0	1.5	0.8
72		16		77	5.500				2.0	3.1	1.5
73		16		75	5.357				2.5	3.7	2.0
74		18		225	16.071	16		64	2.0	3.1	1.5
75		16		73	5.216				0.6	0.8	0.4
76		16		73	5.216				0.7	1.1	0.5
77		16		82	5.859				0.6	0.7	0.4
78		12		62	4.429				0.5	0.7	0.4
79		12		62	4.429				0.6	0.9	0.4
80		12		75	5.357				0.6	0.9	0.4
81		16		70	5.000				1.0	1.5	0.8
82		16		181	12.929				1.0	1.5	0.8
83		16		190	13.571	16			2.0	3.1	1.5
84		16		257	18.357	16			2.0	3.1	1.5
85		16		298	21.286	16			2.5	3.7	2.0
86		8		62	4.429				0.4	0.7	0.3
87		8		60	4.286				0.4	0.6	0.3
88		8		56	4.000				0.3	0.6	0.2
89		8		52	3.716				0.3	0.5	0.2
90		8		48	3.429				0.2	0.5	0.1
Total 90	599	2236	6932	21598	2075.945	450	4065	6585	255.0	377.9	204.5

Key:
A Course.
B Granite in Pieces.
C Sandstone in Pieces.
D Granite in cubic feet.
E Sandstone in cubic feet.
F Tons of Sandstone and Granite.
G Sandstone Joggles.
H Oak Trenails.
I Oak Wedges in pairs.
J Pozzolano in Barrels.
K Lime in Barrels.
L Sand in Barrels.

A	B	C	D	E	F	G	H	I	J	K	L
Over,	599	1524	6932	16035	1678.590	338	4065	6329	207.1	303.8	165.4
43		16		140	10.000				1.1	1.6	1.4
44		16		139	9.929				1.2	1.8	1.6
45		16		135	9.643				1.1	1.7	1.4
46		16		132	9.429				1.1	1.6	1.4
47		18		261	18.643	16		64	2.0	3.0	1.5
48		16		118	8.429				1.0	1.5	0.8
49		16		115	8.214				1.0	1.5	0.8
50		14		114	8.143				1.0	1.5	0.8
51		14		123	8.786				0.9	1.4	0.7
52		16		122	8.714				0.9	1.4	0.7
53		16		115	8.214				1.0	1.5	0.8
54		16		113	8.072				1.0	1.5	0.8
55		16		102	7.286				0.9	1.4	0.7
56		18		258	18.428	16		64	2.0	3.1	1.5
57		16		97	6.929				0.9	1.4	0.7
58		16		104	7.429				0.9	1.4	0.7
59		14		96	6.857				0.9	1.4	0.7
60		14		102	7.286				0.7	1.1	0.5
61		16		100	7.143				0.8	1.2	0.6
62		16		97	6.929				0.8	1.3	0.6
63		16		90	6.429				0.7	1.1	0.5
64		16		86	6.143				2.0	3.1	1.5
65		18		228	16.288	16		64	0.6	0.9	0.4
66		16		83	5.929				0.7	1.0	0.5
67		16		82	5.859				0.6	0.9	0.4
68		16		88	6.286				0.4	0.7	0.3
69		12		76	5.429				0.6	0.9	0.4
70		16		74	5.286				0.6	0.9	0.4
71		16		95	6.786				1.0	1.5	0.8
72		16		77	5.500				2.0	3.1	1.5
73		16		75	5.357				2.5	3.7	2.0
74		18		225	16.071	16		64	2.0	3.1	1.5
75		16		73	5.216				0.6	0.8	0.4
76		16		73	5.216				0.7	1.1	0.5
77		16		82	5.859				0.6	0.7	0.4
78		12		62	4.429				0.5	0.7	0.4
79		12		62	4.429				0.6	0.9	0.4
80		12		75	5.357				0.6	0.9	0.4
81		16		70	5.000				1.0	1.5	0.8
82		16		181	12.929				1.0	1.5	0.8
83		16		190	13.571	16			2.0	3.1	1.5
84		16		257	18.357	16			2.0	3.1	1.5
85		16		298	21.286	16			2.5	3.7	2.0
86		8		62	4.429				0.4	0.7	0.3
87		8		60	4.286				0.4	0.6	0.3
88		8		56	4.000				0.3	0.6	0.2
89		8		52	3.716				0.3	0.5	0.2
90		8		48	3.429				0.2	0.5	0.1
Total 90	599	2236	6932	21598	2075.945	450	4065	6585	255.0	377.9	204.5

Masonry,	2075.945
Lantern, and its Apparatus,	7.500
Total in Tons,	2083.445

In this Table, 13 cubic feet are allowed to a ton of Granite, and 14 cubic feet to a ton of Sandstone.

Workmanship.