236 



OBITUARIES. 

 Albert Grunow, Hon. F.R.M.S. 

 By J. B. De Toni, Hon.F.R.M.S. 



One of the oldest Honorary Fellows of the Society, Albert 

 Grunow, elected in 1879, died in Berndorf, Austria, on March 17, 

 1914, where he was born on November 3, 1826. 



Albert Grunow was Chemist to the Berndorf Dye Works, but 

 he soon became attracted to the microscopical investigation of 

 unicellular Algse, his first studies being on the new or critical 

 species of Austrian Desmidiacere, Pediastrere, and Diatomacese, 

 edited between 1858 and 1863. During the same period he pub- 

 lished a criticism on the Desmids and Diatoms distributed by Ger- 

 sternberger in Rabenhorst's Decaden and on the genera Ceratoneis 

 and Frustulia. Afterwards, Grunow described the species of the 

 Algse collected by H.M.S. ' Novara ' in the voyage round the 

 world, 1867, and of the Algpe from the islands of Fiji, Tonga, and 

 Samoa (1874). He also made observations on other subjects, e.g. 

 on Diatoms from the deposit of Jutland (1866) ; on the Diatoms on 

 Sargassum from Honduras (1867) ; on the distinction of the forms 

 of Schizonema and Jierkeleya 1868 ; etc. 



In 1878 Grunow published a study of the Caspian Algae, which 

 was followed by other interesting papers on some new species of 

 Nitzschia (with notes by Fred. Kitton) and on species of Gram- 

 matophora. 



Grunow's fame was much increased by his important contri- 

 butions to the knowledge of the fossil Austro-Hungarian Bacillarie* 

 (1882), of the Diatoms from Franz Josephs Land (1884) the region 

 of Bogos in Africa (1886), the Kaiser Wilhelms Land (1889), and 

 other extra-European regions. 



In collaboration with P. T. Cleve, a distinguished chemist and 

 Diatomologist of Upsala, he published a remarkable study of the 

 Arctic Diatoms, which was a veritable monograph especially as re- 

 gards the genera Achnanthes, Navicula, Pleurosigma, and Nitzschia. 



The name of Albert Grunow is closely united with that of 

 Henri van Heurck, in the publication of the well-known and much 

 appreciated " Synopsis des Diatomees de Belgique." This after- 

 wards appeared in an English translation under the editorship of 

 Mr. Wynne E. Baxter, F.R.M.S. 



(irunowalso wrote a great number of summaries on various 

 microscopical subjects, and on Algology, which are to be found in 

 the list made by Julien Deby for the bibliography of the Diato- 

 macese. This was published in the second volume of my " Sylloge 

 Algaram omnium." 



