Mineral Point Wis. Tuesday July 28-91 Spent the morning in collecting in quarries in the rear of the woolen mills and the gins factory. The "lower buff" and the "lower blue" beds are exposed. Fossils not numerous. Bought several Orthoceratite of one of the men in this quarry. Since Monday my throat has been very sore annoying me considerably! At noon a fever came on me compelling me to remain in the hotel and attend to my throat. The fever left me late in the afternoon. Rain after 3 o'clock.