No. 1 Map of the City of New York showing densities of population in the several sanitary districts June 1, 1894. No. 2, Map of the City of New York showing the distribution of the principal nationalities by sanitary districts. Made under the direction of The Tenement House Committee of 1894. No. 3, Map of the City of New York showing the density of population by wards in 1860. No. 6, Map of the City of New York showing the density of population by wards in 1890.