Some workers of the Liverpool Naturalists' Field Club, 1901. Mr Laverock, Mr Holt, Dr Ellis, Mr Fitzpatrick, Mr Davies, Dr Green, Miss Wood (Emily Margaret Wood).
  <a rel="nofollow" class="external free" href="https://doi.org/10.5962/bhl.title.129855">https://doi.org/10.5962/bhl.title.129855</a>
Unknown author<span style="display: none;">Unknown author</span>
1902
<a rel="nofollow" class="external free" href="https://biodiversitylibrary.org/page/53276968">https://biodiversitylibrary.org/page/53276968</a>