R. H. Montgomery

• Altitudes in Alberta north of 15th base line
• Altitudes in Alberta south of 15th base line
• Altitudes in eastern Ontario
• Altitudes in northern Ontario
• Altitudes in Nova Scotia and Prince Edward Island
• Altitudes in Saskatchewan north of latitude 51 [degrees] 30'
• Altitudes in Saskatchewan south of latitude 51 [degrees] 30'
• Precise levelling in Alberta
• Solar Decision Book