Analysis of information sources in references of the Wikipedia article "Brood II" in English language version.
Dr. Walker sais he remembers that the years 1724 & 1741 were great locust years. we all remember that 1758. was and now they are come again this year 1775. it appears then that they come periodically once in 17 years. they come out of the ground from a prodigious depth. it is thought that they eat nothing while in this state, laying their eggs in the small twigs of trees seems to be their only business. The females make a noise well known. The males are silent.
Dr. Walker sais he remembers that the years 1724 & 1741 were great locust years. we all remember that 1758. was and now they are come again this year 1775. it appears then that they come periodically once in 17 years. they come out of the ground from a prodigious depth. it is thought that they eat nothing while in this state, laying their eggs in the small twigs of trees seems to be their only business. The females make a noise well known. The males are silent.
Dr. Walker sais he remembers that the years 1724 & 1741 were great locust years. we all remember that 1758. was and now they are come again this year 1775. it appears then that they come periodically once in 17 years. they come out of the ground from a prodigious depth. it is thought that they eat nothing while in this state, laying their eggs in the small twigs of trees seems to be their only business. The females make a noise well known. The males are silent.