As more exact observation teaches us, the occurrence of these involuntary reproductions is not an entirely random and accidental one.

According to exact observations, the increase of temperature in the interior of the globe advances at the rate of one degree (1-4/5 deg.

According to the most exact observations, the augmentation of the temperature of the interior of the earth is one degree for every hundred feet.

This tradition includes exact observation, experiment, and the application of anatomical and physiological science, human and comparative, to practical Medicine.

Faith was no leap in the dark but depended upon "exact observation and correct thinking."

Mr. Weaver, who has previously published four novels and five books of short stories, combines powerful inventiveness with a gift for exact observation.

He kept voluminous diaries filled with vehement opinions and exact observations.

His special force was exact and detailed observation, field research as we would call it today, always avoiding premature general conclusions from his observations.

Nature's Awakening Light Henry David Thoreau's unique mingling of exact observation and philosophical speculation established the pattern for nature writing in this country.

In these the sensitivity of the artist is combined with the exact observation of the scientist.