Modern Methods of Plant Analysis When the handbook Modern Methods of Plant Analysis was first introduced in 1954 the considerations were 1. the dependence of scientific progress in biology on the improvement of existing and the introduction of new methods; 2. the inavailability of many new analytical methods concealed in specialized journals not normally accessible to experimental plant biologists; 3. the fact that in the methods sections of papers the description of methods is frequently so compact, or even sometimes so incomplete, that experiments are difficult to reproduce. These considerations still stand today. The series was highly successful, seven volumes appearing between 1956 and 1964. Since today there is still a demand for the old series, the publisher has decided to resume publication of Modern Methods of Plant Analysis. It is hoped that the New Series will be as acceptable to those working in plant sciences and related fields as the early volumes undoubtedly were. It is difficult to single out the major reasons for success of any publication, but we believe that the methods published in the first series were up-to-date at the time and the descriptions as applied to plant material so complete in themselves that there was little need to consult other publications.

A Simple Unified Theory: From Magnetism to Gravity, a new title by H.C. Huang, probes our current scientific understanding of the universe. Huang's quest for possible answers to some of modern physics' most basic, yet baffling, questions, takes the reader on an illuminating journey to the boundaries of science. The author traverses the broad, but interconnected, landscape of particle physics: from the origins of magnetic force, to wave-particle parallelism and color force and color charges, to gravity's source. Huang's theories are presented in four, interrelated parts. Part I, "Magnetic Bars: Origins of Magnetic Force," considers the origin of the "mystic" force and its behavior, including the mechanism of repulsion and attraction. Part II, "Photons: Wave-Particle Parallelism," considers the dual nature of light. Along with Einstein, who insisted that photons are particles, Huang concurs, proposing the foundation for this agreement. Part III, "On Color Force and Color Charges," approaches the structure of the atom to derive both the strong and weak forces. Finally, in Part IV, "Gravity's Source," Huang discusses the structure of gravity. He also suggests why the Earth's magnetic polarities change and why beams of light cannot be woven into fabric to hold any mass. Author's illustrations are included.