Methods of soil analysis Smithsonian Libraries and Archives Object Details Author Klute, Arnold Weaver, R. W (Richard W.) 1944- Mickelson, S. H Sparks, Donald L. Ph. D Bartels, J. M Dane, Jacob H Topp ...

TIOBE Index for August 2025: Top 10 Most Popular Programming Languages Your email has been sent Python continues to solidify its significant lead over all of the other programming languages ranked ...

What is carbon-14 dating? The invention of radiocarbon dating elegantly merged chemistry and physics to develop a scientific method that can accurately determine the age of organic materials as old as ...

Methods of investigation of productivity of invertebrates in terrestrial ecosystems / A. Macfadyen -- Methods of production estimation in various types of animal population / W. Kaczmarek -- ...