No. 490] NOTES AND LITERATURE 



Professor Terry showed also a wax reconstriicti 

 cat embryo of 23.1 mm. This model, which is bea 



drocrania,— Professor (imipp's model from r.;ic( 

 model from the chirk, mid I'mlc^sDr Ih'riwi^-'s iii 

 embryo of 8 ems. 



Professor J. W. van W ijhr tin- rniver.liy ..f ( 

 has perfected a method of making embryos trans 

 selective staining of their cartilages with methyl 

 suiting preparations show the cartilaginous skeletf 

 familiar transparent potash-glycerine preparation- 

 skeleton. This new and valuable method was us( 

 the development of the chondrocranium of birds, i 

 which were shown under two inch objectives. 



Professor W. A. Locy showed the" aortic arelir 

 injected with ink while the heart still pulsr.ted (a 

 believe, by Professor Mall). The embr\ os u .-it i 1, 

 the fourth and pulmonary arches were clearly sli 

 the small subdivision of the latter, which is descri!) 

 This fifth arch was the object of the demonstrat' 

 as compared with the other arches was evident, y 

 presumably a larger vessel than in mammals. 



Professor S. H. (iage of Cornell University I 

 reaction to iodine in sections of the tiKMlullary 1)1; 

 and also in nerve cells and in the deci) la}er of t 

 lampreys. These ti^Mie-^, whi.li were cxliil.iicd, 

 amples" of the wide " ^ 



Dr. J. I.. Uremer of the Ilarvr.rd Medical Sclic 

 structions of the brain, pharynx, and liver of a ' 

 mm. The brain is of particular iiu<-re.t .incc 



