Alfred D. Severance V. Knightcounihan Co‪.‬

Defendant operates a printing plant in San Francisco. Plaintiff was employed by defendant as a salesman of its tariff business from May 1936 to January 1943. For over twenty years before his employment with defendant he conducted a printing business of his own. Defendant had no tariff business when plaintiff entered its employ, and plaintiff built up defendant's tariff business during the period of his employment to a volume of approximately $50,000 a year. When plaintiff resigned his position with defendant, he notified