An innovative and diverse football playbook can be the difference between winning and losing. In today's game, fresh and unpredictable plays are crucial, so it's vital to pick your plays from a wide and creative arsenal. Sixteen-year-old Warren Erdmann provides just that for coaches everywhere.

In "My Motion Offense at 16," Erdmann has compiled an original array of offensive plays based on a philosophy of spreading out the defense, using the entire field, keeping the play-calling simple, making the defense adjust to the offense, and using the team's strengths to exploit the opponents' weaknesses.

In explaining and diagramming each play, Erdmann clearly illustrates how to maximize the talent on the field and breaks down how a play capitalizes on the strengths of the offense and the weaknesses of the defense. In most of his plays, Erdmann emphasizes that seconds count, communication matters, and carefully orchestrating the eleven players on offense is critical to maximizing their talent and ultimately putting points on the scoreboard.

This ambitious book constructively uses terminology and diagrams to describe each play and its execution for coaches, players, and devoted fans. You will be impressed that a high school junior has devised so many interesting plays and has organized them so well to make your team successful on the football field.

thesiologist, were not included. Perhaps the next symposium will have a paper on his many contributions. Even though his dates are not quite modem (1813-1858), his accomplishments were, especially his book On Chloroform and Other Anaesthetics (1858), the first comprehensive textbook on anaesthesia [2]. There has been a real renaissance of interest in the history of anaesthesia. Among those responsible for this rebirth, besides Dr. Rupreht and Dr. Erdmann, are Dr. Selma Calmes and Dr. Rod Calverley, now on the Board of the new American society, the Anesthesia History Association. It held its inaugural meeting in Atlanta, Georgia, during the annual meeting of the American Society of Anesthesiologists, on 9 October 1983. The meeting was well attended, and the evening was profitable and delightful. Mention should also be made of the accomplishments of the nurse anaesthetists [3]. They are many in number, and generally they work under the direction of a physician- anaesthesiologist. Although modem anaesthesia was Ameriea's first great medieal diseovery, it soon traversed the globe and found worldwide acceptance. The British, for example, have made many coeval and historie contributions. Besides Dr. Duncum one thinks of Prof. T. Cecil Gray, who pioneered the British use ofeurare [4], andDr. J. Alfred Lee, whowas a pioneerin the use ofspin~l anaesthesia and is currently working on the fifth edition of a textbook on spinal analgesia [7]. Dr.

R. Droh Ladies and gentlemen. dear friends and colleagues. we welcome you very cordially to our symposium "Innovations in Management and Technic and Pharmacol ogy." We are very glad that you have come to Liidenscheid and we do hope that our programme will fulfil your expectations. We decided to hold this symposium, because it is getting more and more dif ficult to select innovations at international congresses around the world which are important for our clinical work. Now and in the future our intention is to present the actual state of technology. management and pharmacology. We would be very glad to receive your suggestions for further symposia. The industry has the same problems as we have. They do not only have to search for those things which can be realized and which are desirable, but also for those things which can be sold. But the industry must also be stimulated by the inventors and by the users, so we want to bring together the industry, the physicians and the inventors for fruitful discussions. And we hope that in the fu ture the industry will provide us more quickly with those technical and organiz ational aids that we need. We want the indu try no longer running behind the market but heading the market. At present too many interesting developments are killed by so-called market analysis, in the beliefing that such analysis can always prove what cannot be sold. In anaesthesia many companies are always busy with the same product."

An innovative and diverse football playbook can be the difference between winning and losing. In today's game, fresh and unpredictable plays are crucial, so it's vital to pick your plays from a wide and creative arsenal. Sixteen-year-old Warren Erdmann provides just that for coaches everywhere.

In "My Motion Offense at 16," Erdmann has compiled an original array of offensive plays based on a philosophy of spreading out the defense, using the entire field, keeping the play-calling simple, making the defense adjust to the offense, and using the team's strengths to exploit the opponents' weaknesses.

In explaining and diagramming each play, Erdmann clearly illustrates how to maximize the talent on the field and breaks down how a play capitalizes on the strengths of the offense and the weaknesses of the defense. In most of his plays, Erdmann emphasizes that seconds count, communication matters, and carefully orchestrating the eleven players on offense is critical to maximizing their talent and ultimately putting points on the scoreboard.

This ambitious book constructively uses terminology and diagrams to describe each play and its execution for coaches, players, and devoted fans. You will be impressed that a high school junior has devised so many interesting plays and has organized them so well to make your team successful on the football field.

Der vorliegende Band enthalt eine Darstellung der PrUfverfahren fUr die nichtmetallischen Baustoffe. Diese Baustoffe sind sowohl nach ihrer Art als nach ihren Sorten sehr mannigfaltig. AuBerdem hat jede Art der vielen Bau stoffe besondere Anwendungsgebiete und besondere Eigenschaften; deshalb sind auch die Prufverfahren vielgestaltig. Dazu kommt, daB die Herstellung der Baustoffe sowie ihre Auswahl und ihre Beurteilung in weitverzweigten Industrien und Gewerben erfolgt und erfolgen muB und daB die PrUfung der Baustoffe dementsprechend vielseitig zu gestalten und zu entwickeln ist. Zunachst ist die Prufung der seit alter Zeit viel gebrauchten Stoffe, namlich der Holzer, der naturlichen und der gebrannten Steine dargestellt; dann folgt die Prufung der Kalke, der Gipse, der Zemente, der Mortel und des Betons; hieran schlie Ben sich die Priifverfahren der Trasse, der Hochofenschlacken, der Magnesiamortel, der Bauglaser und der Anstriche. Es folgt die Beschrei bung der Papiere und der Pappen als Baustoffe, ferner der Leime und schlieB lich der Teere und der Bitumen. Einzelne Abschnitte enthalten auBerdem Priifverfahren fUr Bauteile, soweit die zugehorigen Vorschriften Bedingungen fUr den Baustoff enthalten. Da alle in Betracht kommenden Sachkundigen seit langer Zeit durch ihre Berufsarbeit in auBerordentlichem MaBe in Anspruch genommen sind, war es notig, die fUr das vorliegende Buch erforderliche Arbeit weitgehend zu verteilen."