Bald-faced hornet is constructed too close to human habitation. They vigorously defend the nest, with workers stinging repeatedly, as is common among social bees and wasps. However, the baldfaced hornet has a unique defense in that it can squirt or spray venom from the stinger into the eyes of vertebrate nest intruders. The venom causes immediate watering of the eyes and temporary blindness. The life cycle of a colony can be divided into the founding stage, the ergonomic stage and the reproductive stage. Colonies show annual cycling. New nests are generally founded during spring and early summer by a single queen, though
Robert Bald of the system of apprenticeship in the West Indies. The meeting attendees included the Lord Provost and other city dignitaries, as well as those connected with the Emancipation Society. Bald is reported as seconding the first resolution against the evils of apprenticeship, which was called for the abolition of a system that was but slavery under another name. In 1808 Bald mentored Francis Benjamin Hall, civil engineer and later acted as a mentor for the teenaged James Nasmyth, engineer and inventor of the steam hammer, introducing him to noted engineers and taking him on trips to engineering sites. Nasmyth mentions