Thorkell Thorkelsson (41 results)

Paperback. Condition: Very Good. No Jacket. May have limited writing in cover pages. Pages are unmarked. ~ ThriftBooks: Read More, Spend Less.

Condition: As New. Unread book in perfect condition.

Condition: New.

Paperback. Condition: New.

Condition: New.

PAP. Condition: New. New Book. Shipped from UK. Established seller since 2000.

PAP. Condition: New. New Book. Shipped from UK. Established seller since 2000.

Condition: New. In English.

Condition: New.

PF. Condition: New.

Condition: New.

HRD. Condition: New. New Book. Shipped from UK. Established seller since 2000.

Condition: As New. Unread book in perfect condition.

HRD. Condition: New. New Book. Shipped from UK. Established seller since 2000.

Condition: New. In English.

Taschenbuch. Condition: Neu. Neuware - This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it.This work is in the 'public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.…

Paperback. Condition: New. Print on Demand. This book explores the radioactivity of Icelandic hot springs following an expedition in 1906. The author sought to determine the extent to which terrestrial heat influences the Earth's temperature, and what connection, if any, exists between radioactive substances and the Earth's heat. The author examines theories regarding the formation of sulphur in Iceland, explores the unique features of Icelandic springs, and details the devices and methods used to gauge radioactive emanations, a field in its infancy at the time of the expedition. The author's findings, including a previously undocumented phenomenon of steam exhalation, provide valuable insights into the relationship between radioactive substances and terrestrial heat. Detailing the author's experiences and observations, this book offers a fascinating glimpse into early 20th-century scientific exploration, sheds light on the little-known world of Icelandic hot springs, and provides a valuable historical benchmark for future studies in radioactivity and geology. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item.…

Kartoniert / Broschiert. Condition: New.

Soft cover. Condition: Good. København, Andr. Fred. Høst & Søn. 1910. (2)+181-264+(1) pages. Printed wrappers. The over-sized wrappers are a bit bumped with a couple of minor tears. Stamp: Aaalborg kathedralskole, and a small hand-written note on the front wrapper. Unopened. With xiii plates. D. Kgl. Danske Vidensk. Selsk. Skr., 7 række, naturvedensk. og mathem. afd, VIII.4. …

Buch. Condition: Neu. Neuware - This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it.This work is in the 'public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.…

Condition: New. KlappentextThis work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it.This work is in the public domain in the United States of America, and possibly .

PAP. Condition: New. New Book. Shipped from UK. THIS BOOK IS PRINTED ON DEMAND. Established seller since 2000.

Paperback. Condition: New.

24.5 x 16 cm, paperback, 124 pages, Text in English, paper slightly browned, although very good, see picture. Visindafelag Islendinga, vol. XXIX. 214g.

PAP. Condition: New. New Book. Delivered from our UK warehouse in 4 to 14 business days. THIS BOOK IS PRINTED ON DEMAND. Established seller since 2000.

Condition: Gut. 39, (1) Seiten. Seltener isländischer Druck. - Einband randgebräunt, leicht fleckig und Rücken mit minimaler Fehlstelle. - Insgesamt gut bis sehr gut erhaltenes Exemplar. Sprache: Deutsch Gewicht in Gramm: 250 Gr. 8° (22,5-25 cm). Orig.-Broschur. [Softcover / Paperback].

Condition: New. Print on Demand.

HRD. Condition: New. New Book. Shipped from UK. THIS BOOK IS PRINTED ON DEMAND. Established seller since 2000.

Condition: New. Print on Demand.

Paperback / softback. Condition: New. This item is printed on demand. New copy - Usually dispatched within 5-9 working days.