O. T. Zimmerman

1905

• DDT
• Industrial Research Service's conversion factors and tables
• Chemical engineering costs
• Chemical engineering laboratory equipment
• College placement directory
• Industrial research service's handbook of material trade names
• Industrial Research Service's psychrometric tables and charts
• Industrial Research Service's supplement to the 1953 edition of Handbook of material trade names
• Industrial Research Service's Supplements to the 1953 edition of handbook of material trade names
• Scientific and technical abbreviations, signs and symbols
• Unit operations laboratory equipment