CONTENTS. CHAPTER II-Scope and method of the industrial investigation: Geographical extent of the investigation.. The principal branches of mining and manufacturing enterprise studied.. Industrial condition abroad of members of immigrant households studied.. Principal occupation of immigrant employees before coming to the United The immigrant and organized labor. CHAPTER V.-Housing and living conditions: PART IV. SUMMARY OF NATIVITY GROUPS AND INDUSTRY. PART I-METHODS EMPLOYED IN THE COLLECTION AND PRESENTA TION OF DATA. CHAPTER I. INTRODUCTION. The present report is a summary presentation of the results obtained from the study of the operating forces of mines and manufacturing establishments. In preparing the data for publication six general divisions have been made. Part I, or the present section, sets forth the scope of the investigation and the methods employed in the collection of original statistical data. Part II includes a summarization of the salient facts developed by the study of the principal industries of the country arranged according to industries. Part III is a summary presentation of the statistical data by race without regard to industry; Part IV, the same, by general nativity groups and industry. Parts V and VI consist of the general number tables upon which the statistical material in Part II is based. All the material is presented according to the same method and by the same series of chapter headings, followed in the reports on selected industries in order that the data in all the industrial reports may be compared. 3 |