It is not our purpose to follow further the trail which Accum and others, and more lately and particularly Dr. Hassall, have discovered for us. Before closing the pages of the latter gentleman's report, however, from which we have drawn so largely, we cannot avoid stating that the community is under the greatest obligation to both himself and the editor of the _Lancet_--to the one for the energy with which he pursued his subject, and to the other for his singular boldness in rendering himself liable for the many actions which the publication of the names of evil-doers was likely to bring upon his journal, a liability which Dr. Hassall has since taken upon himself by the reprint of the report under his own name. This report is, in fact, as far as it goes, a handbook to the honest and fraudulent food-dealers in the metropolis; and every man who values wholesome aliment, and thinks it a duty to society to support the honest tradesman in preference to the rogue, should procure it as a valuable work of reference. We have not followed the author into personalities, as no further purpose could be served by so doing; but we have shown enough to convince the public that the grossest fraud reigns throughout the British public commissariat. Like a set of monkeys, every man's hand is seen in his neighbour's dish. The baker takes in the grocer, the grocer defrauds the publican, the publican "does" the pickle manufacturer, and the pickle-maker fleeces and poisons all the rest.[7] As guardian of the revenue, the government is deeply interested in this question, independently of the view it must take of its moral aspect, for the excise is without doubt cheated to the extent of hundreds of thousands a year by the same unlawful practices which demoralize a large portion of the community, and defraud and deceive the remainder. THE ZOOLOGICAL GARDENS.