CHAPTER XXVII

SOME OTHER CORNISH MONUMENTS

_Boscawen-un_, _N. Lat._ 50° 5′ 20″

My wife and I visited Boscawen-un on a pouring day, when it was

impossible to make any observations. Mr. Horton Bolitho, who was with

us, introduced us to the tenant of Boscawen-noon--Mr. Hannibal Rowe--who

very kindly, in spite of the bad weather, took us to the circle and the

stone cross to the N.E. of it.

Lukis thus described this monument:[118]--

“The enclosed ground on which this circle stands is uncultivated and

heathy, and slopes gently to the south. Twenty years ago a hedge ran

across it and bisected the circle.

“This monument is composed of nineteen standing stones, and is of an

oval form, the longer diameter being 80 feet and the shorter 71 feet 6

inches. One of the stones is a block of quartz 4 feet high, and the

rest, which are of granite, vary from 2 feet 9 inches to 4 feet 7 inches

in height. On the west side there is a gap, whence it is probable that

a stone has been removed. Within the area, 9 feet to the south-west from

the centre, is a tall monolith, 8 feet out of the ground, which inclines

to the north-east, and is 3 feet 3 inches out of the perpendicular.

[Illustration: FIG. 59.--Photograph of the Ordnance Map.]

“In 1594 Camden describes this monument as consisting of nineteen

stones, 12 feet from each other, with one much larger than the rest in

the centre. It must have been much in the same condition then as now. As

he does not say that the monolith enclosed within it was inclined, it is

possible that it was upright at that time.

“Dr. Stukeley’s supposition was that it originally stood upright, and

that ‘somebody digging by it to find treasure disturbed it.’

“On the north-east side there are two fallen stones which Dr. Borlase,

in 1749, imagined to have formed part of a Cromlech. It is more probable

that they are the fragments of a second pillar which was placed to the

north-east of the centre, and as far from it as the existing one is.

There are instances, I believe, of two pillars occupying similar

positions within a circle. One of the stones, that marked C in my plan,

on the eastern side of the ring, was prostrate in the Doctor’s time.

“At a short distance to the south-east and south-west there are cairns,

which have been explored.”

For this monument I have used the 6-inch map, as the circle lies nearly

at the centre, and all the outstanding stones are within its limits. The

heights of the sky-line were measured by Mr. H. Bolitho at a subsequent

visit with a miner’s dial; the resulting declinations have been

calculated by Mr. Rolston. A theodolite survey will doubtless revise

some of them:--

Marks. Az. Hills. Dec. Star. Date.

1. F. Stone cross N. 43° 15′ E. 2° 7′ +29° 26′ Capella 2250

2. P. Fine menhir N. 53 30 E. 1 15 22 58 Solstitial --

sun

3. B. Blind N. 54 30 E. 1 15 22 24 Solstitial --

Fiddler sun

4. Two large N. 66 50 E. 1 0 14 55 May sun --

menhirs

5. Stone cross N. 78 0 E. 1 0(?) + 8 8 Pleiades 1480

(May)

6. Stone S. 66 30 E. 1 0(?) -14 32 November --

sun

7. Stone N. 83 30 W. 1 0(?) + 4 36 Pleiades 2120

(September)

[Illustration: FIG. 60.--Showing azimuths in Lat. N. 50° for the summer

solstice sunrise, with different heights of hills for 1905 A.D. and 1680

B.C.

~Vertical axis from bottom: SEA LEVEL, ¹⁄₂°, 1°, 1¹⁄₂°, 2°.~

~Horizontal axis, top, from left: 1905 A.D., 49° 20′-54° 20′.~

~Horizontal axis, bottom, from left: 1680 B.C. (DATE OF STONEHENGE), 48°

40′-53° 40′.~]

I gather from a report which Mr. H. Bolitho has been good enough to send

me that modern hedges and farming operations have changed the conditions

of the sight-lines, so that 1 and 3 are just invisible from the circle.

This is by no means the only case in which the sighting stone has just

been hidden over the brow of a hill and in which signals from an

observer on the brow itself have been suggested, or a _via sacra_ to the

brow from the circle; there are many monoliths in this direction which

certainly never belonged to the circle.

From the menhir P (No. 2) a fine view is obtained from N. to S. through

E., so that the Blind Fiddler and the two large menhirs, and almost the

circle, are visible. The curious shapes of 1 and 2 are noted, the east

face vertical and the west boundary curved, like several sighting stones

on Dartmoor.

The circle itself has several peculiarities. In the first place, as

shown by Lukis, it is not circular, the diameters being about 85 and 65

feet; the minor axis runs through the pillar stone in the centre and the

“fallen stones” of Dr. Borlase towards the “stone cross” (which is no

cross but a fine menhir) in Az. N. 43° 15′ E. This would suggest that

this was the original alignment in 2250 B.C., but against this is the

fact that the two stones of the circle between which the “fallen stones”

lie are more carefully squared than the rest. It is true, however, that

this might have been done afterwards, and this seems probable, for they

are closer together than the other circle stones.

The one quartz stone occupies an azimuth S. 66° W. It was obviously

placed in a post of honour. As a matter of fact, from it the May sun

was seen to rise over the centre of the circle.

As there are both at Tregaseal and Boscawen-un alignments suggesting the

observation of the summer solstice sunrise, it is desirable here to

refer to the azimuths as calculated. For this purpose Fig. 60 has been

prepared, which shows these for lat. 50° both at the present day and at

the date of the restoration at Stonehenge.

My readers should compare this with Fig. 36, which gives the solstice

sunrise conditions of Stenness in Lat. N. 59°. Such a comparison will

show how useless it is to pursue these inquiries without taking the

latitude and the height of the sky-line into account.

“_Stripple Stones_” (lat. 50° 32′ 50″ N., long. 4° 37′ W.)

This is a very remarkable circle consisting of 5 erect and 11 prostrate

stones situated on a circular level platform 175 feet in diameter on the

boggy south slope of Hawk’s Tor on the Hawkstor Downs in the parish of

Blisland. The circle itself is about 148 feet in diameter, and the whole

monument is, in Lukis’s opinion, the most interesting and remarkable in

the country. Surrounding the platform is a ditch 11 feet wide, and

beyond that a penannular vallum about 10 feet in width. The peculiarity

of the vallum is that it has three bastions situate on the north-east,

north-west, and east sides. It is to the north-east bastion that I wish

to refer.

Sighting from the huge monolith, which is now prostrate but originally

marked the centre of the circle, along a line bisecting the arc of this

bastion we find that the azimuth of the sight-line is N. 25° E.; the

angular elevation of the horizon from the 1-inch Ordnance map appears to

be about 0° 22′. From these values, proceeding as in the former cases,

we find

Alignment. Decl. Star. Date.

Centre of circle to centre of bastion 35° 1′ N. Capella 1250 B.C.

indicating that this alignment was formed for the same purpose as that

which dominated the erection of the “Pipers.”

“_Nine Maidens_” (lat. 50° 28′ 20″ N., long. 4° 54′ 35″ W.)

In this monument we find a very different type from those considered

previously.

The Nine Maidens are simply 9 stones in a straight line 262 feet in

length at the present day; possibly, as suggested by Lukis, it may have

extended originally to the monolith known as “The Fiddler,” situated

some 800 yards away in a north-easterly direction. Measuring the azimuth

of the alignment on Lukis’s plan, and finding the horizon elevations

from the 1-inch Ordnance map, we have the following:--

Az. Hills. Decl. Star. Date.

N. 28° E. 0° 0′ 37° 47′ N. Capella 1480 B.C.

It may be remarked that here we have a date for the use of Capella

intermediate between those obtained for the “Pipers” and the “Strippie

Stones” respectively.

[118] _Prehistoric Stone Monuments of the British Isles: Cornwall._ W.

C. Lukis. P. 1.

Stonehenge and Other British Stone Monuments Astronomically Considered · 第 15 / 18 章