Literary Notices. xlv 



proportion of coursely granular particles, with here and there a larger 

 one of round or rod shape, No nucleolus or nucleus is visible. 



Although closely related with nerve fibres, actual connection can 

 nowhere be demonstrated. 



A considerable number of multipolar, pyramidal and bipolar 

 nerve cells also exist whose processes soon become lost among the 

 granule cells. 



The granules are supposed by the author to have a nervous func- 

 tion, as diseases of the cerebellum frequently produce an atrophy of 

 these elements. The eosin cells are likewise probably nervous. 



The description of the capsule of the Purkinje cells is so at vari- 

 ance with the " baskets" of Koelliker that it seems useless to com- 

 pare them. 



The last paragraph is remarkable in the light of recent studies. 

 " The nerve elements of the cerebellum viewed as a unit bespeak a 

 sensory and not a motor organ." " Lesions of the cerebellum, with 

 fhe exception of the middle lobe, are without objective symptoms. 

 It is conceivable that an involvement of the cortex of the middle lobe 

 may also be symptomless and that the true reason of the perversion 

 of the sense of equilibrium in disease of this part is because the mul- 

 tiform crossings of fibres to and fro from one part of the organ to an- 

 other are intersected, and that symptoms arise, not from lesion of the 

 cortex of the vermis or middle lobe, but from the dest*-uction of the 

 function of these crossing fibres, which then produce a loss of func- 

 tion, not of the middle lobe solely, but of the whole cerebellum." 



We trust the author may be able to institute detailed comparisons 

 between his preparations and the published results of Cajal and Koel- 

 liker. 



A New Method of Coloriug Neuroglia. 



Professor Kultschitzky' describes a process for staining neurog- 

 lia which seems to have proven very useful. The author very prop- 

 erly lays great weight upon the previous treatment which, in this case, 

 consists in fixation with a mixture consisting of a solution of potas- 

 sium bichromate and cupric sulphate in 50 per cent, alcohol saturated 

 (in the dark) after addition of one half to one per cent of acetic acid. 

 The fixation takes place in the dark as does the hardening in strong 

 alcohol, at first. For large fragments 2-3 months are required for fix- 

 ation. Sections are cut in paraffin. 



1 Anat. Anzeiger, VIII, 10. 



