It is to this age we must refer the making of the lines of entrenchments in various parts of the county at Honington, Ingoldsby, Kingerby, Hoe Hill, Fulletby, and other places. The Bronze Age people are generally called Celts, and have been subdivided by Professor Rhys as Goidelic and Brythonic races—the older race being the Goidels and the later race Brythons. “Both races spoke a language that belonged to the Aryan or Indo-European family, but had certain peculiarities that point to racial divergence.”—C. H. READ. It is to the Bronze Age Professor Boyd Dawkins would attribute the erection of the great stone circles, such as Stonehenge, Avebury, and other places, but of these stone circles no remnants exist in Lincolnshire. THE PREHISTORIC IRON AGE, 400 B.C. Traces of the occupation of Lincolnshire in this period are to be found in the pre-Roman smelting furnaces for iron in various parts of the county at Manton and elsewhere. Certain iron spear-heads, daggers,[7] sheaths,[8] and swords[9] of bronze from the river Witham are also attributed to this period. The art of enamelling the surface of metal appears in the Prehistoric Iron Age, and its chief centre seems to have been the British Isles. The shield found in the river Witham is put down to this period in the _British Museum Handbook_, pages 87 to 92. It is one of the most beautiful specimens of inlaid work yet discovered. “With the introduction of iron a change in the burial customs took place in Britain. Cremation was carried on, but the dead were frequently interred at full length in a stone chamber, or shallow pit, along with various articles used in daily life.” Doubtless there are many “finds” of stone and bronze and iron implements from Lincolnshire in private collections that are not described in any book or catalogue extant. It is only by personal knowledge, and by contributing that knowledge to a common centre, that anything like a correct record can be made for the benefit of students and futurity of the Prehistoric Period in Lincolnshire. With the coming of the Romans, B.C. 55 and 47 A.D., we enter on the Historic Iron Age, which is outside the scope of this article. As regards the Roman occupation of Lincoln, A.D. 50, we have written elsewhere.[10] THE ROMANS IN LINCOLNSHIRE BY THE REV. E. H. R. TATHAM, M.A.