The desultory is not a bad way of increasing our resources of expression. Although there be a systematic and a best mode of acquiring language, there is also an inferior, yet not ineffective mode; namely, reading copiously whatever authors have at once a good style and a sustaining interest. Hence, for this purpose, shifting from book to book, taking up short and light compositions, may be of considerable value; anything is better than not reading at all, or than reading compositions inferior in point of style. The desultory man will not be without a certain flow of language as well as a command of ideas; notwithstanding which, he will never be confounded with the studious man. * * * * * V. A fifth point is the proportion of book-reading to Observation of the facts at first hand. From want of opportunity, or from disinclination, many persons have all their information on certain subjects cast in the bookish mould, and do not fully conceive the particular facts as these strike the mind in their own character. A reader of History, with no experience of affairs, is likely to have imperfect bookish notions; just as a man of affairs, not a reader, is subject to narrowness of another kind. It was remarked by Sir G. Cornewall Lewis, that the German historians of the Athenian Democracy write like men that never had any actual experience of popular assemblies. A lawyer must be equally versed in principles and in cases as heard in court: this is a type of knowledge generally. In the Natural History Sciences, observation and reading go hand in hand from the first. In the science of the Human Mind, there are general doctrines, contrived to embrace the world of mental phenomena: the student may have to begin with these, and work upon them exclusively for a time, but in the end, phenomena must be independently viewed by him in their naked character, as exhibited directly in his own mind, and inferentially in the minds of those that fall under his observation. Book knowledge of Disease has to be coupled with bed-side knowledge; neither will take the place of the other. * * * * * VI. I began by limiting the meaning of study to the reading of books, and have reviewed the various points in the economy of this process. The other means of attaining, enlarging, deepening our knowledge, namely, Observation of facts, Conversation, Disputation, Composition, have each an art of its own--especially Disputation, which has long been reduced to rule. Observation also admits of specific directions, but, in stating the necessity of combining observation with book theories and descriptions, I have assumed the knowledge of how to observe. [AIDS OF CONVERSATION AND COMPOSITION.]