Delinquency, relation to street work, report of Dr. Charles P. Neill, 159. Chicago juvenile court records, 178. Connection between occupation and offense, 171. Records of Indiana Boys' School, 179-187. Delivery Service, 68, 161-174. Detroit, regulations of street work, 193. Edinburgh, conditions in, 44, 125, 224. Effects of street work, classified, 128. In Buffalo, 132, 133. In physical deterioration, 142-145. Opinions of superintendents of reformatories, 131, 132. Employment distinguished from independent work, 2, 192. Enforcement of regulations, 132, 208, 211. Errand running, 202. Delinquency, 161-174. France, regulations, 241. Germany, inquiry of 1898, 45-48. Regulations, 239. Girls as newspaper sellers, 31, 65, 200. Great Britain, Departmental Committee of 1910, 76, 138, 147, 197, 223, 237. Employment of Children Act, 1903, 221. Interdepartmental Committee of 1901, 43, 73, 145, 203, 217. Interdepartmental Committee of 1902 on Ireland, 150, 294, 220. Interdepartmental Committee of 1904 on Physical Deterioration, 125, 142. Parliamentary return of 1899, 39-42, 215. Hartford, regulations of street work, 196. Housing problem's relation to street trading, 20. Illinois, effort to regulate street trading, 14, 198. Immigration Commission, report on Padrone System, 36, 86-92. Ireland, report of Interdepartmental Committee of 1902, 150, 204, 220. Kelley, Florence, on street trading, 52, 70, 127, 207. Laws, table of state, 194. Licenses for street work required, 197, 209. License statistics, of Boston, 33. Of Cincinnati, 35, 71. Of New York, 16, 34. Liverpool, conditions, 230. Regulations, 232. London County Council bylaws, 233-236, 264. Lovejoy, Owen R., on messenger service, 123. Manchester regulations, 236. Market children, 21, 96. Ages, 97. Earnings, 96. Home conditions, 99, 100. Hours, 99. Nationalities, 97, 98. Orphanage, 100. Retardation, 98, 99. Merchandise, distinction between newspapers and, 189. Messenger boys, 101. Ages, 106-117. Character of work, 101-104. Chicago Vice Commission's report, 118-121. Delinquency, 104, 165, 169. Diseases, 111, 112, 113. Earnings, 106, 112, 113, 114. Environment, 102, 103. Hours, 108, 113, 115, 119. Investigation in Ohio Valley, 106-117. Lack of prospects, 104, 126. Poverty as excuse for work, 122. Use of men instead of boys, 105, 123-125. Nationality of street workers, 33, 97. Nearing, Scott, conditions in Philadelphia, 69, 135. Neill, Charles P., on newsboys' work, 64. On messenger service, 117. Report on Juvenile Delinquency and its Relation to Employment, 159. Newark, regulations of street work, 196. New York, report of newsboy investigation, 16, 34, 148. Child Welfare Exhibit, 60. Regulations of street work, 195.