Dublin: Samuel B. Oldham, 1845 & 1848. Original cloth. Folio. 2 Volumes. Contemporary Blue-green and brown linen cloth on boards; wear to ends of spines; paper label on spine chipped at head; separate red printed red paper label on front boards; fading along hinge, and all edges; dusting to tail and part of fore edge of ffep, mainly to Vol. II. Collation: Vol I.- [vi], 50 recto mounted specimens, each with blank cover leaf and printed label at tail of page; Vol.II. – [iv], 50 mounted specimens as Vol. I. There is a total of 100 intact specimens of preserved algae carefully glued to leaf either as a pressed plant or plant previously dried onto separate piece of paper that was then glued to the page. At the bottom of each page is a printed and mounted caption label with number, Latin genus and species and location found. Each numbered label corresponds to the printed list at the front of the volume. Specimens were collected from Dublin proper and canals, Roundstone Bay, Co. Galway, and Larne, Co. Antrim. The majority of the specimens are divided between Dublin and Roundstone Bay. Very good. Item #0000803
William M'Calla was born at Roundstone, Connemara in 1814. He served as Schoolmaster and Algologist. He discovered Erica mackaina and sent algae to W. J. Hooker, W. H. Harvey and others. His only publication is this one, Algae Hibernicae. There are only two libraries with copies, Trinity College and National Library of Ireland. M’Calla’s plants were deposited at Trinity College, Dublin. The collection at Trinity College has the following description from OCLC: “Printed title and list of species; specimens are mounted on paper and pasted to blank leaves with printed labels, numbered to match the list, which in v. 1 has MS additions. Much of the nomenclature is in MS, particularly on the many loosely inserted extra specimens. These include some Australian species and some labelled F.P. Girdlestone, some with 1850 dates and some unnamed./ Vol. 1 has cancel slip 'Vol. I' pasted over Vol. II on title.” This is a rare copy. Only one other copy has been offered for sale from Maggs in 1915.