si mOCEEDIKGS OF THE 



entomological paper, by King on 8ynemon ; various contributions 

 to Palaeontology by T. Bucb, Miiller, Beyrich, andHensel; several 

 by Ehrenberg on microscopic organisms ; a series of memoirs 

 by Mliller on the structure and development of Ecbinoder- 

 mata ; by Link, Karsten, and Hansteiu, on questions of vege- 

 table Anatomy ; A. Braun's Individuum, and Parthenogenesis 

 and Polyembryony ; and a few systematic-botanical papers by 

 Kuntb and Klotzsch. 



In 1836 the Academy commenced the reports of tbeir proceed- 

 ings in octavo, published monthly, except during the summer va- 

 cation, under the unmanageable title of Bericht iiber die zur 

 Bekanntmachung geeigneten Yerhandlungen der koniglichen 

 preussischen Akademie der Wissenschaften zu Berlin, each year 

 forming a volume, at first a thin one, but gradually extended. 

 In 1858 the general title was shortened to Monatsbericht der 

 koniglichen preussischen Akademie der "Wissenschaften zu Ber- 

 lin ; and an excellent index to the first twenty-three volumes was 

 soon afterwards published. These Proceedings do not separate the 

 Physical from the Mathematical and Philological and historical 

 classes : they include abstracts of the papers read ; and, especially 

 in the later volumes, there are often short papers in extenso, 

 with a few plates, l.i'ortunately those on zoological and botanical 

 subjects, not repeated elsewhere in more detail, are ^ry few. 

 The most important in the recent volumes are Peters's descrip- 

 tions of animals from the Museum of Berlin, Hackel on the Me- 

 diterranean Eadiolariae, Ehrenberg on Northern Deep-Sea Micro- 

 zoological Productions, De Bary on Cceoma, A. Braun on South- 

 American Characese, and some notes on Isoetes and Marsilea, 

 and Klotzsch's review of Aristolochiaceee. 



The Gesellschaft naturforschender Freunde zu Berlin was 

 established in 1773, and pxiblished sixteen volumes of Schriften in 

 octavo, from 1775 to 1794, with little, if anything, now deserving 

 of notice. In 1795 they made great efi'orts to reorganize and 

 improve their publications, and a new series appeared, entitled 

 Der Gresellschaft naturforschender Ereunde zu Berlin neue 

 Schriften, 4to, with plates. Of this there are four volumes, 

 from 1795 to 1803, containing, besides Mineralogy, Geology, 

 Physics, and local Natural History, a few short zoological papers 

 and several in botany, by Willdenow, Swartz, Link, and others. 

 After another interruption, it was resumed in 1807 as a quarterly 

 publication, four parts 4to, forming a thin annual volume with 

 indiftereut plates, under the title of Per Gresellschaft natur- 



