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Excerpt from Herbicides for Control of Western Swordfern and Western BrackenDuring September 1971, 13 to 15 months after treatment, percent bracken cover and frond height and density were estimated on each plot. Height and density were obtained by measuring the average height and number of fronds in four systematically located l-foot square subsamples in each plot. The results of treatment are shown in table 3.About the PublisherForgotten Book...

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Excerpt from Report on the Petroleum Districts: Situated on the Red Sea CoastGreat hopes were raised in consequence of the finding of this oil. M. De Bay's N o 1 still produces a small quantity of oil. I have not been able to procure any data as to the strata through which his borings were made, but as this Well is only 41 feet distant from one bored later by the American borers to a depth of more than 400 feet, the strata through which the bo...

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This book profiles scholarly work from around the world to closely examine the effectiveness of the newest media in education at bridging the gaps among & between teachers, students & subject matter at all levels, from K-12 through adult education. Today, new media is both augmenting & extending the traditional classroom.

This book profiles scholarly work from around the world to closely examine the effectiveness of the newest media in education at bridging the gaps among and between teachers, students and subject matter at all levels, from K-12 through adult education.

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