. Frost & fire : moteurs naturels, les marques de l'outil & chips : avec des prises à la maison et à l'étranger par un voyageur. d l'outil-marques de cette partie de la dénuder moteur sont différents, likeriver-marques. Il y a beaucoup de râpes et de rainures dans un outil-poitrine, et de nombreux types de glace dans le monde. Le modèle décrit ci-dessus était composé de différentes parties. 1. Un cône de fusible de particules solides en vrac un ; un talus-hea]"est passé de ci-dessus, ce qui a changé en une forme de dôme<lmound ^-v lorsque chauffé. 2. Demi-flux fondu de la cire qui thebase Howed de, glissé sur le sable, et marqué d'une rainure en V - il. 3. Un flux de l

• Contributeur: The Reading Room / Alamy Banque D'Images
• ID de l’image: 2AG3PHK
• Taille du fichier: 7,2 MB (662,6 KB Téléchargement compressé)
• Autorisations: Modèle - non | Propriété - non
• Dimensions: 1376 x 1817 px | 23,3 x 30,8 cm | 9,2 x 12,1 inches | 150dpi

Informations supplémentaires

Cette image appartient au domaine public, ce qui signifie que le droit d’auteur a expiré ou que le titulaire du droit d’auteur a renoncé à ses droits. Les frais facturés par Alamy couvrent l’accès à la copie haute résolution de l’image.

Cette image peut avoir des imperfections car il s’agit d’une image historique ou de reportage.

. Frost & fire : natural engines, tool-marks & chips : with sketches taken at home and abroad by a traveller. d the tool-marks of this part of the denuding engine are various, likeriver-marks. There are many rasps and gouges in a tool-chest, and many kinds of land-ice in the world. The model above described consisted of various parts. 1. A fusible cone of loose solid particles A ; a talus-hea]»dropped from above, which changed into a dome-shape<lmound ^—v when warmed. 2. A half-melted stream of wax which Howed from thebase, slid over sand, and marked out a groove in it v -. 3. A stream of lloats, which were pushed into water, andcarrieil away liy it. It has now to be shown that like systems exist in nature, and form part of a revolving atmospheric system which scul]vtures mountain-forms. Before examining tool-marks, the tools ought to be under-stood ; and the conical luiap comes first in order. The ojjposite coast of Norway is very easily reached fromEngland. A smaUconical glacier is to be found near Bergen, at llie head of the Sogne Fjord. It is constantly changing of Mill I ^-^l t. , •. III ^5Ml €ilflil SSI si ilsHillSI 182 DENUDATION—FKOST-lNl ARKS. from dome to cone, and IVoni cone to dome, as it rises andsinks ; it works fast, and on a hot day it teaches more aboutglaciers than any specimen known to the writer. A pilgrim-age to see it in 1857 is thus described in a travellers roughjournal: Sept. 7th.—Started from rja}rland Fjord, with a man tocaiTy my traps, distance aboiit forty miles. No one about thisplace seems to know whether it is or is not possible to getover the mountains, but my man knows part of the way, andthe map has a track marked upon it. The porter said he hadoften travelled with Englishmen, and he seems to he a kindof idle, poachmg, good-for-nothing character, so we got onfamously. On our way we met a pretty girl, who asked myman if a certain old woman was at home. She, as it turnedout, is a witch, and the lassie was going to consult

Recherche dans la banque de photos par tags

• bookcentury1800
• booksubjectgeology
• booksubjectmeteorology
• librury