Seit dem Erscheinen des zweibandigen Standardwerkes von F. HONCAMP, "Handbuch der Pflanzenernahrung und Dungerlehre", sind mehr als dreissig Jahre vergangen. Bei den sturmischen Fortschritten auf allen Gebieten der Natur- wissenschaften, insbesondere der Chemie, Pflanzenphysiologie, Biochemie, Bodenkunde und Technologie, ist dieses zur Zeit seines Erscheinens so aus- gezeichnete Handbuch naturlich langst veraltet. Zweifellos besteht heute ein dringendes Bedurfnis nach einem ahnlichen Werk. Wenn wir von dem ursprunglichen Plan abgekommen sind, das HONCAMP- sche Handbuch in neuer Auflage zu bearbeiten, so vor allem deswegen, weil die tiefgreifende Entwicklung auf diesem Gebiet eine vollig neue Gestaltung des Werkes geboten erscheinen liess. Es gliedert sich nun in drei Bande. Band I behandelt im wesentlichen die physiologischen Grundlagen der Pflanzenernahrung. Er enthalt eine ausfuhrliche und systematische Darstellung der eigentlichen Ernahrungsphysiologie. Auf eine Erorterung der allgemeinen pflanzen- physiologischen Grundlagen konnte dabei verzichtet werden, weil im RUHLAND- sehen "Handbuch der Pflanzenphysiologie" ein umfassendes und modernes Nach- schlagewerk zur Verfugung steht. Band II beschaftigt sich mit dem Boden und den Dungemitteln. Unter Berucksichtigung der modernen Agrikulturchemie haben wir das heutige Wissen uber den Boden als Standort und Nahrstoffquelle der Pflanze unter den Verhalt- nissen der landwirtschaftlichen Praxis und des Gartenbaues bzw. des Forstwesens systematisch zusammengefasst. Die folgenden Kapitel befassen sich mit der Beschreibung und Herstellung der verschiedenen Wirtschafts- und Handels- dungemittel. Gerade auf diesem Gebiet bestehen in der wissenschaftlichen Literatur erhebliche Lucken, da keine grosseren Lehr-oder Handbucher vorhanden sind, die sich eingehender mit der Technologie der Dungemittel und der Dungung beschaftigen.

Readers of the first volume of Progress in Orthopaedic Surgery may remember the introductory remarks of Drs. Wagner and Hungerford. It is the intention of the editors of this publication to familiarize English - speaking orthopaedists with articles published in the European literature which, because of language barriers, would otherwise be inaccessible to them. Most articles in this second volume also are translations of papers originally printed in Der Orthopiide. The purpose of this German medical journal is to disseminate the newest experiences of orthopaedic problems in a form that is of particular value to the practising orthopaedic surgeon. In 1973 eight articles were published on acetabular dysplasia. In his fore word to this issue Dr. Wagner stated some of the reasons why such an indepth study was deemed necessary. He was of the opinion that the shallowness and increase in acclivity of the acetabulum was of such central importance in the development and treatment of hip dysplasias that a volume dealing with this subject was fully justified. Another reason for this collection of papers was the advances made in correcting the results of a dysplastic acetabulum by surgical means and thereby improving hip joint function in later years, or at least pre venting its early deterioration."

This book explores the essentials of RFID and the EPCglobal Network from the perspective of a practitioner that needs to make business decisions concerning the adoption of the technology. The perspective is from the supply chain management standpoint with emphasis on case studies and new thinking about the subject. The EPCglobal Network and RFID technology holds great promise for transforming business through the use of low-cost, radio frequency identification (RFID) tags to improve information flow and productivity.

This book explores the essentials of RFID and the EPCglobal Network from the perspective of a practitioner that needs to make business decisions concerning the adoption of the technology. The perspective is from the supply chain management standpoint with emphasis on case studies and new thinking about the subject. The EPCglobal Network and RFID technology holds great promise for transforming business through the use of low-cost, radio frequency identification (RFID) tags to improve information flow and productivity.

APEEC is the first measurement scale designed to evaluate the use of developmentally appropriate practices in the early elementary classroom (K-3). Developed for classrooms serving both children with and without disabilities, the APEEC can be used by administrators and researchers to evaluate the degree of developmental appropriateness in inclusive and general education classrooms. It can also be used by teachers as a self-assessment tool. The book includes a carefully thought-out score sheet, which can be photocopied for use in rating classrooms. Featuring straightforward language and an easy-to-follow format, APEEC is organized under three main categories: 1;Physical Environment-room arrangement, display of child products (e.g., artwork), classroom accessibility, health and safety 2;Instructional Context-use of materials and computers, monitoring child progress, teacher-child language, instructional methods, integration and breadth of subjects 3;Social Context-children's role in decision-making, participation of children with disabilities, social skills, diversity, transitions between activities, and family involvement The authors used a multi-step process to develop the APEEC, including a thorough review of the relevant literature (particularly the NAEYC guidelines and early childhood special education literature); an extensive review of the scale by practitioners, researchers, and board members of professional organizations and research journals; and field testing in 69 classrooms.