THREE:In making notes, as much as possible of what is written should be condensed into brief formul?, a form of expression which is fast becoming the written language of machine shops. Reading formul? is in a great degree a matter of habit, like studying mechanical drawings; that which at the beginning is a maze of complexity, after a time becomes intelligible and clear at a glance.She was only just in time to get back behind the green gates when the Countess emerged again with something in her hand. Her head was held high, her eyes gleamed with triumph. Then the great black car shot noiselessly away, and Hetty crept back to the house.