Unlike some other reproductions of classic texts (1) We have not used OCR(Optical Character Recognition), as this leads to bad quality books with introduced typos. (2) In books where there are images such as portraits, maps, sketches etc We have endeavoured to keep the quality of these images, so they represent accurately the original artefact. Although occasionally there may be certain imperfections with these old texts, we feel they deserve to be made available for future generations to enjoy.

Unlike some other reproductions of classic texts (1) We have not used OCR(Optical Character Recognition), as this leads to bad quality books with introduced typos. (2) In books where there are images such as portraits, maps, sketches etc We have endeavoured to keep the quality of these images, so they represent accurately the original artefact. Although occasionally there may be certain imperfections with these old texts, we feel they deserve to be made available for future generations to enjoy.

Originally published in 1926, this textbook is the second edition of a 1918 original, and provides a detailed and engaging introduction on the theory of electricity. 'As in the first edition the object has been to present a complete account of the purely theoretical side of the subject in the only form in which it appears to be satisfactory from the point of view both of mathematical consistency and of physical completeness'. Notably, particular attention has been given to the formulation of the underlying physical principles and to their translation into a mathematical theory. Tailored to suit the needs of undergraduates and presenting the facts and examples in an accessible manner, the book assumes prior knowledge of the subject and the mathematics necessary for a full understanding. Providing essential knowledge and skills for those embarking on the study of electricity, this book will be of value to scholars of physics.

Liven A. Peterson, Jr., was born February 19, 1917, in Virginia, MN, a mining town on the Mesaba Iron Range in the wild Arrowhead Country of that state. Little "Pete" took off on his kiddy car to explore the woods when he was four years old and he has been doing so ever since. He spent a large part of his spare time hunting, fishing, and enjoying nature. When he enrolled at the University of Minnesota in 1936, he selected wildlife biology as his major. After graduation in 1939 and Army service during WWII, he joined the River Basin Studies Branch of the U.S. Fish and Wildlife Service. He was stationed at Billings, Montana; Grand Island, Nebraska; Minneapolis, Minnesota; and Boise, Idaho before retiring in 1972. He traveled across the Midwest and Northwest doing field work on many water development projects during his professional career. These are his collected stories and recollections of 97-years.

60 microstories, written by the Esperanto author Liven Dek. --- Mondial prezentas en chi tiu volumo 60 mikronovelojn kaj unu suplementan novelon de la Esperanta au'toro Liven Dek (Miguel Gutierez Aduriz). --- "Mallongecon chiam oportune valorigis la poetoj. Epokoj, kiam eposo regnis, postlasis ankau' epigramojn... Venis prozpoemoj, fine naskighis mikronoveloj. Liven Dek citas, omaghas, parodias iujn majstrojn de la ghenro... Sed la mikronoveloj kiujn vi trovos en la sekvaj paghoj ne estas stilekzerco en la sulko de tradicio..." (Giulio Cappa) --- Al la plej konataj verkoj de Liven Dek apartenas noveloj en "Ekstremoj" (kun Jorge Camacho, Miguel Fernandez kaj Goncalo Neves, 1997) kaj poemoj en "Ibere libere" (kun la samaj au'toroj, 1993). Liven Dek eldonas i.a. la scienc-fikcian serion "Sferoj" kaj kontribuis al ghi, same kiel al pluraj aliaj literaturaj revuoj. Li krome verkis Esperanto-kurson kaj vortarojn kaj tradukis el la hispana.