106 NOTES AND COMMENTS [February 



Stone Implements from Swaziland. 



A fine series of stone implements has recently been sent to England 

 by Mr. Sidney Ryan. They were found near Darkton, in the tin-bearing 

 gravels of the M'Babaan, or Embabaan, Biver, West Swaziland. The 

 thirteen consists of siliceous schist, black fine-grained quartzite or chert, 

 and of quartzites composed of grit and breccia of quartz, lydite, and 

 jasper. There is also one of crystalline quartz. The large forms vary 

 in length from 4^ x 3^ to 8x4| in., and weigh from 13^ oz. up to 

 2 lb. 7jf oz. Their shape corresponds to weapons found in England and 

 France, being of a long-ovate, sharper at one end than at the other. 

 Professor Rupert Jones has described and figured these interesting 

 implements in the Journal of the Anthropological Institute, New Series, 

 vol. i. It is not possible at present to assign any age to these 

 implements, as the age of the gravel in which they were found has 

 not yet been determined by geologists. 



Danish Bonlders. 



The investigation of the age of the boulders, as determining the 

 existence of rocks intermediate in age between the Senionian of 

 Jutland and the Lower Palaeozoic of Norway and Sweden, was first 

 begun by Forchhammer about 1820. Of recent years Miss Ethel G. 

 Skeat, of Cambridge, and Mr. Victor Madsen, of Copenhagen, have 

 undertaken the investigation, and the results of their labours are now 

 before us under the title of " On Jurassic, Neocomian, and Gault 

 Boulders found in Denmark." The paper, which forms Part 8 of the 

 second volume of Danmarks Geologishe Undersogelse, consists of 214 

 pages, 8 plates, and a map. Forty-three boulders have been examined, 

 and their fossil contents carefully described by the authors. They 

 have been determined as follows: — 11 from the Lias, 1 from the 

 Callovian, 24 from the Kimeridge-Portland series, 2 from the Neo- 

 comian, and 4 from the Gault. The general conclusion supports 

 Forchhammer's theory, and the boulders are considered evidence of 

 former deposits to the north of Jutland and in the Skager Rack region. 



Coccospheres and Rhabdospheres. 



The nature of these bodies has been referred to in Natural Science from 

 time to time, and we now have to record the appearance of the results 

 of researches by Messrs. G. R. Murray and V. H. Blackman during a 

 voyage to the West Indies in 1897. The authors agree with Haeckel 



