Charles Haynes Haswell ... Set off B c, B e, each equal to o s\ draw m c u perpendicular to B s} then m u is directrix and B e focus; through e and any number of points, i, i, i, etc., in axis, draw ... For other methods see D. R. Clarka#39;s Manual, pp.

Title | : | Mechanics and Engineers' Pocket-book Tables, Rules and Formulas ... |

Author | : | Charles Haynes Haswell |

Publisher | : | - 1892 |

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