. . . . "The young trigonometer's compleat guide being the mystery and rationale of plane trigonometry made clear and easy"@en . "Publishers' advertisements"@en . . . . . . . "The young trigonometer's compleat guide; being the mystery and rationale of plain trigonometry made clear and easy"@en . . . . "The Young Trigonometer's Compleat Guide, etc"@en . "The young trigonometer's compleat guide, being the mystery and rationale of plane trigonometry made clear and easy"@en . . "The young trigonometer's compleat guide being the mystery and rationale of plain trigonometry made clear and easy"@en . .