“In the cantons of Ploudalmézeau and of St. Renan, the monuments are generally simple; seven menhirs are visible of enormous dimensions, remarkable by the polish of their surface and the regularity of their section. The roughnesses hardly ever reach a centimetre; the sections are more often ovals, sometimes rectangles with the angles rounded or terminated by semicircles. In the canton of Crozon the monuments are, on the contrary, complex; we find a cromlech with an avenue leading to it of a length of 800 metres, another of 300 metres. Unfortunately, the rocks employed (sandstone and schist from Plungastel and Crozon) have resisted less well than the granulite from the north part of the Department. The monuments are for the most part in a very bad condition; the whole must, nevertheless, formerly have been comparable with that of Carnac-Leomariaquer. [Illustration: FIG. 28.--Melon Island, showing Menhir (A) and Cromlech (B and C).] “For the two regions, granitic and schistose, the results of the observations are identical. “The monuments lie along lines oriented S. 54° W. → N. 54° E. (54° = azimuth at the solstices for L = 48° 30′ and _i_ = 23° 30′) and N. 54° W. → S. 54° E. Some of them determine lines perpendicular to the meridian. [Illustration: FIG. 29.--Menhirs of St. Dourzal, D, E, F.] “One menhir (A), 6m. 90 in height and 9m. 20 in circumference, erected in the small island of Melon (canton of Ploudalmézeau, latitude 48° 29′ 05″) a few metres from a tumulus surrounded by the ruins of a cromlech (B and C), has the section such that the faces, parallel and remarkably plane, are oriented N. 54° E. (Figs. 27 and 28). “At 1300 metres in the same azimuth there is a line of three large menhirs (D, E, F), of which one (E) is overthrown. The direction of the line passes exactly by the menhir A. Prolonged towards the N.E. it meets at 3k. 700m. an overturned block of 2m. 50 in height, which is without doubt a menhir; towards the S.W. it passes a little to the south some lines of the island of Molène.... (Fig. 29). [Illustration: FIG. 30.--Alignment at Lagatjar, G G′.] “There exists in the neighbourhood other groups, forming also lines of the same orientation and that of the winter solstice. It is advisable to remark that orientations well determined for the solstices are much less so for the equinoxes, which is natural, the rising amplitude varying very rapidly at this time of year.