Irish Jesuits:
Fr. Henry Gill's experiments with spinning tops, 1908
Irish Jesuits:
Mungret Observatory - 1909
Irish Jesuits:
Mungret College 1909
Irish Jesuits:
Seismographic record of the Singapore earthquake, 3 June 1909
Irish Jesuits:
New Seismograph - Mungret 1911
Irish Jesuits:
Diary of seismograph at Rathfarnham, Dublin - September 1923
Irish Jesuits:
Seismograph - Rathfarnham 1938
Irish Jesuits:
The Drum of the Rathfarnham Seismograph, 1938
Irish Jesuits:
Pope Pius XII and Fr. Daniel O' Connell S.J., Sputnik launch, 4 October 1957