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The 3-hydroxy-3-methylglutaric acid (HMG) containing flavonoid glucoside chamaemeloside, has been determined to have in vivo hypoglycaemic activity comparable to that of free HMG. An improved isolation scheme for obtaining chamaemeloside from Chamaemelum nobile is presented.

INTRODUCTION AND BACKGROUND TO THE SITE I n 1992 a remarkable collection of metalwork was discovered at Quidney Farm by Jim McLean a local metal detectorist. The finds came from two discrete areas of a field which is c. 8 hectares in size and located to the north of the farm in Saham Toney parish (FIGS 1 and 2). From a small area (Findspot A, FIG. 3) four complete bronze terrets or harness rings and a fifth broken and incomplete terret, an enamelled roundel, a plate brooch, and an iron axe head were found. The other group of artefacts, found together (Findspot B, FIG. 3), consisted of two copperalloy horse bits, an iron and copper-alloy linch pin, a pair of iron manacles, and other fragments of metal, mainly iron, some possibly from a griddle. The finds form part of a rich collection of late Iron Age/ early Roman material found by Mr McLean at Quidney Farm between 1990 and 1993. Recorded under the same site number (County Site 29429) are a miniature terret found approximately 100 m to the west of Findspot A and an Icenian silver coin, boar/horse C type (0.69 g) 1 which was found approximately 150 m to the northwest of the terrets. Also from the site are five Romano-British brooches 2 which date to between A.D. 40 and 60/65. From the southwest end of the same field (recorded as County Site 28294) a total of eight brooches of Romano-British date 3 and an Icenian early Freckenham type gold stater (5.35 g) 4 have been found (FIG. 2a). Other finds of Iron Age or early Romano-British date from the immediate area of Quidney Farm include a silver finger-ring, 5 brooches, 6 another Icenian silver coin, boar/horse C type (0.70 g) 7 and an iron axe (FIG. 2a). 8 Further large amounts of metalwork and coinage dating to the period have been recovered from 1

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