The Quarterly journal of the Geological Society of London . lls of Saxicava rugosa, Mya truncata^etc. in some abundance in the lower debris-bands of the glacier, andon the lower slopes of the terminal moraine; at higher levels, theshells are scarcer and more fragmentary. We found one fragmentat the height of 400 feet, and that we did not find any still higherwas probably due to the hurried nature of our search. It may be suggested that these marine remains found in themoraine were derived from some old raised beach, which issituated at a level higher than that at which we found them. Thehighes


The Quarterly journal of the Geological Society of London . lls of Saxicava rugosa, Mya truncata^etc. in some abundance in the lower debris-bands of the glacier, andon the lower slopes of the terminal moraine; at higher levels, theshells are scarcer and more fragmentary. We found one fragmentat the height of 400 feet, and that we did not find any still higherwas probably due to the hurried nature of our search. It may be suggested that these marine remains found in themoraine were derived from some old raised beach, which issituated at a level higher than that at which we found them. Thehighest raised beach that we could find in the traverse from SassenBay to Agardh Bay was not more than 200 feet above sea-level. Wefound no trace of any raised beach in the upperPulmar Valley betweenthe great morainic bar and the northern face of the Ivory the lower Fulmar Valley we found traces of raised beaches,but we doubt whether they reached the 300-foot level (see fig. 3,p. 206). The highest terraces that we could see on the sides of f^ SQ CObe. Co u. 2 o S. o o3 as f-, Xi 2 » © o =*- «« O o •33 o a a. Agardk Dale were certainly ata lower level than this ; hencethe shell-fragments occur atleast 200 feet above any raisedbeach in the immediate neigh-bourhood. If the case restedon shell-fragments alone, thenegative evidence would per-haps be inconclusive ^ ; butthe bulk of the moraine andthe intraglacial material con-sists of waterworn pebblesand similar beach-material;among it we found, more-over, fragments of whale-bones and driftwood. Eaisedbeaches on the flanks of avalley would not have yieldedsufficient material: the quan-tit}^ is so enormous that it canhave come onlj from somethick deposit, such as thatformed in an up-silted could see no sign ofany high-level beach-depositswhence the material could havebeen derived. Considering, therefore, thatthe glacier certainly passes overbeach-material, which it canbe almost seen to enclose andelevate, we have no


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Keywords: ., bookcentury1800, bookdecade1840, bookidquarte, booksubjectgeology