Introduction. -- Reflections on the different Degrees of Enjoyment presented to us by the Aspect of Nature and the scientific Exposition of the Laws of the Universe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 23-78 Insight into the connection of phenomena as the aim of all natural investigation. Nature presents itself to meditative contemplation as a unity in diversity. Differences in the grades of enjoyment yielded by nature. Effect of contact with free nature; enjoyment derived from nature independently of a knowledge of the action of natural forces, or of the physiognomy and configuration of the surface, or of the character of vegetation. Reminiscences of the woody valleys of the Cordilleras and of the Peak of Teneriffe. Advantages of the mountainous region near the equator, where the multiplicity of natural impressions attains its maximum within the most circumscribed limits, and where it is permitted to man simultaneously to behold all the stars of the firmament and all the forms of vegetation -- p. 23-33. Tendency toward the investigation of the causes of physical phenomena. Erroneous views of the character of natural forces arising from an imperfect mode of observation or of induction. The crude accumulation of physical dogmas transmitted from one country to another. Their diffusion among the higher classes. Scientific physics are associated with another and a deep-rooted system of untried and misunderstood experimental positions. Investigation of natural laws. Apprehension that nature may lose a portion of its secret charm by an inquiry into the internal character of its forces, and that the enjoyment of nature must necessarily be weakened by a study of its domain. Advantages of general views which impart an exalted and solemn character to natural science. The possibility of separating generalities from specialties. Examples drawn from astronomy, recent optical discoveries, physical geognosy, and the geography of plants. Practicability of the study of physical cosmography -- p. 33-54. Misunderstood popular knowledge, confounding cosmography with a mere encyclopedic enumeration of natural sciences. Necessity for a simultaneous regard for all branches of natural science. Influence of this study on national prosperity and the welfare of nations; its more earnest and characteristic aim is an inner one, arising from exalted mental activity. Mode of treatment with regard to the object and presentation; reciprocal connection existing between thought and speech -- p. 54-56.