"Meteorology; or, Weather Explained" by J. G. M'Pherson is a scientific publication written in the early 20th century. It aims to demystify various meteorological phenomena and provides a thorough understanding of weather patterns, atmospheric conditions, and the impact of dust particles. Throughout the text, M'Pherson draws from established scientific principles while incorporating practical observations to elucidate the complexities of weather. At the start of the work, the author discusses the omnipresence and significance of weather in daily life, stressing its role in influencing both business and leisure. He observes common expressions related to weather and emphasizes how, despite the reliance on traditional weather lore, a scientific approach reveals a more profound understanding. The opening also introduces Dr. John Aitken's contributions to meteorology, setting the stage for a discussion of various weather phenomena such as dew formation, hoar frost, fog, and the science behind everyday weather predictions. (This is an automatically generated summary.)