I also mention among the findings at Spata the large quantity of small ornaments which Professor Landerer's analysis has proved to consist of glass alloyed with much protoxide of lead, the latter having the property of breaking the rays of light; these ornaments present a silvery mirror-like glimmer. Landerer observes that it is soda-glass (in German, _Natrum-Glas_), and that it has the property of dividing into small leaves or splinters. It is very remarkable that all these ornaments of glass have evidently been cast in moulds, and that many of them resemble more or less the types which we see in the Mycenean moulds represented under No. 162 and No. 163, p. 107 and p. 109. On the reverse side of most of these objects are one, two, or three small holes, or tubular rings, for fastening them on other objects, probably on clothes. A most frequent object here is that which we recognise in the type on the lower side of the mould, No. 162, p. 107. There also occur small cones of a much weather-beaten glass, which have the very greatest similarity to the type which we see in that side of the mould, No. 163, which is represented on page 109 in the upper row to the right of the spectator; it also resembles very much the small cone, No. 164, p. 109, of which a large number were found at Mycenæ; the only difference is that the cones of Spata have an impressed spiral line, whereas the cones of Mycenæ show impressed concentric circles. However, it deserves attention that the mould, No. 163, represents the type of such a cone with a spiral line. But then, again, there is the greatest difference in the substance, for whilst at Spata all these small ornaments are of glass, the Mycenean cones and other objects, such as Nos. 164, 165, 166 and 167, are of a hard-baked clay, which has been varnished with a lead glaze; no trace of glass having been found at Mycenæ except some small glass beads, the small object, No. 177, and the almost microscopical tubes of cobalt glass described at pages 157 and 158. As, on the other hand, there have been found a large quantity of small ornaments of hard-baked clay varnished with a lead-glaze, we cannot reasonably doubt that the manufacture of glass at Mycenæ was only in its first beginning, that until the capture of the city (468 B.C.) it made no progress there, and that all the types contained in the Mycenean moulds served merely for the casting of similar ornaments of baked clay varnished with a lead-glaze. But there also occur in the tomb at Spata objects of blue cobalt glass, some of which are identical in shape with the object of stone represented under No. 172, p. 111.