Butterflies; their structure, changes and life-histories, with special reference to American forms. Being an application of the “Doctrine of descent” to the study of butterflies. With an appendix of practical instructions Q Science
The astronomy of the Bible. An elementary commentary on the astronomical references of Holy Scripture Q Science
Fossil sponge spicules from the upper chalk found in the interior of a single flint-stone from Horstead in Norfolk Q Science
Celestial mechanics. A survey of the status of the determinationof the general perturbations of the minor planets Q Science
An introduction to the study of meteorites : with a list of the meteorites represented in the collection Q Science
Pennsylvania glaciation, first phase; materials for a discussion of the attenuated border of the moraine described in volume Z of the second Geological survey of Pennsylvania Q Science
