The muggings and the stick-ups soon began to slop far over the borders and today the extent of Negro crime in all the boroughs scandalizes the decent elements of the race. White men have the money. And since they no longer come up to be taken, the goons spread to greener fields. Lait and Mortimer have set up above only a camera-eye fragment of their long experience and what they learned first-hand in courts, police stations, and day and night contacts with every class and phase of New York's metropolitan manifestations. They have eaten in Harlem hideaways and imbibed at Harlem's beehive bars. They have had the confidence of Negro detectives, who are too ashamed of the behavior of some of their people to gloss it over. This chapter will reform nothing. It was written with no such intent. Its sole function is to inform, and the information should serve as a warning. Harlem is no place for joy hoppers or joy poppers. Outside of the few white people who have business there and who are familiarly recognized, the sight of a white person in the black precincts brings one of several instant reactions: If it's a white man "on the make," the Negroes are infuriated, though the dregs of their own women are there to solicit him; if a white woman is seen, she is either a tramp or a nut with a yen for colored men, and though plenty of colored men are willing, Harlem looks on her as a pariah and an intruder; if a white man and wife walk the avenues, looking curiously here and there, they are peepers who regard the Negroes as the zoo visitors do the exhibits in their cages; if white men go to the worst parts of Harlem to get drunk--God help them. The old days are over. Gawkers and the idly curious who don't know their Harlem may gamble their very lives. Therefore, the gospel of this chapter is: If you haven't legitimate business there-- _Stay Away From Harlem!_ 12. AND YE TOOK ME IN! During the last 12 years and growing every year, there has descended on Manhattan Island like a locust plague an influx of Puerto Ricans. They arrive now frequently at the rate of 2,000 a month and there are today more than 600,000 natives of the island (one authority calculates 710,000) cramped, some 30 in one cold-water flat, mostly in one section of this great island, the whole of which is much smaller than theirs in area. One of every four persons born in this generation in Puerto Rico is in New York; one of every 13 New Yorkers is a Puerto Rican. Referring to these Caribbean wards of the nation as a plague is not prompted by prejudice, anger or careless use of phraseology. Puerto Ricans were not born to be New Yorkers. They are mostly crude farmers, subject to congenital tropical diseases, physically unfitted for the northern climate, unskilled, uneducated, non-English-speaking and almost impossible to assimilate and condition for healthful and useful existence in an active city of stone and steel.