• 21 Books

• 6 Fertilizers
• 6 Manures
• 2 Canned foods industry
• 2 Honey
• 2 Honey as food
• 2 Spice trade
• 1 Candy industry
• 1 Canned meat
• 1 Canned salmon
• 1 Chemical industry
• 1 Cider
• 1 Cider industry
• 1 Confectionery
• 1 Feed processing
• 1 Feeds
• 1 Flour
• 1 Fruit juice industry
• 1 Grape juice
• 1 Maple sugar
• 1 Maple sugar industry
• 1 Maple syrup
• 1 Maple syrup industry
• 1 Pepper (Spice)
• 1 Salmon canning industry
• 1 Sodium phosphates

• 21 English

Limit year range