Like any arthropod encased in a rigid exoskeleton, a trilobite must periodically moult, or exuviate, in order to grow.

proverbial spilled milk

Shafter was also deficient in field artillery, the arm traditionally used to soften up defensive positions before an assault. This weakness was partially remedied on 1 July by a well-handed battery of rapid-fire Gatling guns, the first significant use of such weapons by the United States Army.

This accordingly gives us another way of writing the exponential function, and also a way of calculating its value from a table of common antilogs.