492 PETROLOGICAL ABSTRACTS AND REVIEWS 



erentiation products of the gabbro magma, but considers them metamorphosed 

 inclusions of sedimentary rocks which were resorbed by the gabbro and later 

 recrystallized. 



Klemm, G. ''tjber die angebliche Umwandlung von Andalusit in 

 Disthen in den Hornfelsen des Schiirrkopfes bei Gaggenau in 

 Baden," Zeitschr. d. Deutsch. Geol. Gesell., LXVIII (1916), 

 86-92. 



Eisele regarded the disthene in the hornfels from Schiirrkopf in Baden as 

 due to alteration of andalusite by orogenic pressures which were post-contact- 

 metamorphism ; Klemm regards the two minerals as contemporaneous 

 products. 



Klemm, G. "Zur Errinerung an Richard Lepsius," Notizbl. d. 

 Vereinsf. Erdk., etc., z. Darmstadt, V Folge Hf. i, 1915, 5-22. 

 With portrait and bibliography. 



Klemm, G. "Die korundfiihrenden Hornfelse und die Schmirgel- 

 gesteine von Laudenau und Klein-Gumpen bei Reichelsheim 

 im Odenwald und ihre Nebengesteine," Notizbl. d. Vereins f. 

 Erdk., etc., z. Darmstadt, V Folge, Hf. i, 1915, 23-41, pi. i. 



This is a more detailed description of the corundum-bearing rocks of the 

 Odenwald, mentioned in the third preceding abstract. Ten new analyses 

 are given. 



Klemm, G. " tjber den ' Variolit von Asbach, ' " Notizbl. d. Vereins 

 f. Erdk., etc., z. Darmstadt, V Folge, Hf. 2, 1916 (1917), pi. i. 

 The "variolite" from Asbach, called diabase by Chelius, is here determined 

 as malchite. The varioles, representing fillings of vesicles, vary in size from 

 hazel-nuts to walnuts, occasionally to the size of eggs. They consist of quartz 

 feldspar, iron ore, and epidote. 



Klemm, G. Blatt Neunkirchen. Erlauteru. z. Geol. Karte Hes- 

 sen. 2d ed. Darmstadt, 1918. Pp. 81, pi. i. 

 In this general geological report on the quadrangle lying between lat. 49°48' 

 and 49°32', in Hessen, there are short descriptions of many igneous rocks, and 

 analyses of 4 hornfelses, 2 amphiboUtes, 9 gabbros, 3 hypersthene-gabbros, 3 

 serpentines, 4 diorites, 14 granites, 5 granite-porphyries, 2 granophyres, 9 mal- 

 chites, and 6 odinites. 



