ABSTRACTThis paper gives an account of the discovery and identification of the largest aerolite found to date in the State of New Mexico, namely, Chico, Colfax County (CN = 1042,365). The meteorite, which weighs 231 pounds, is a chondrite notable for the extraordinary size of some of the chondri that it contains. The largest of these bodies so far found is in shape approximately an ellipsoid of three unequal axes of dimensions 57 × 44 × 26 mm. Since the density of this metal‐rich chondrus is certainly in excess of the average density, S.5, determined for the whole meteorite, its weight exceeds 120 gm.,i.e., one‐fourth of a