RECENT ADVANCES IN SCIENCE 401 



Hollister has published " East African Mammals in the 

 United States National Museum : Pt. II, Rodentia, Lagomorpha, 

 and Tubulidentata " (Bull. 99, United States Natural Museum, 

 1 9 19). In this 194 species of the three orders enumerated in 

 the title are dealt with. A number of specimens of most 

 species were collected mainly by the expeditions in charge of 

 Theodore Roosevelt and Paul Rainey, and the localities from 

 which they were obtained and various measurements of each 

 are given. Van der Stricht deals with " The Development of 

 the Pillar Cells, Tunnel Space, and NueTs Spaces in the Organ 

 of Corti " (Jour. Comp. Neur., vol. xxx, April 1919). The 

 tunnel space develops as an intercellular cleft around the spiral 

 nerve bundle, and its fluid contents are elaborated by the 

 vacuolated pillar cells, partly as a result of cytolysis. The 

 first space of Nuel similarly originates as an intercellular cleft 

 between the outer pillars and outer hair cells. The fluid of 

 all the spaces of Nuel is separated from the endolymph of the 

 cochlear duct by the thin roofs of the interspaces. The struc- 

 ture appears to promote the propagation of vibratory waves 

 from the basilar membrane to the membrana tectoria contained 

 in the cochlear canal. Other papers include : 



Allen, " Degeneration in the Albino Rat Testis due to a Diet Deficient in the 

 Water-soluble Vitamine, with a Comparison of Similar Rats Differently Treated, 

 and a Consideration of the Sertoli Tissue" {Anat. Rec, vol. i, April 1919); Bate, 

 " On a New Genus of Extinct Muscardine Rodents from the Balearic Islands '' 

 {Proc Zool. Soc, Pts. Ill and IV, March 1919) ; Carey, " Teratological Studies : 

 A, On a Phocomelus, with Especial Reference to the Extremities ; B, The 

 External Form of an Abnormal Human Embryo of Twenty-three Days ; C, The 

 Anomalies of an Encephalic Monster, complete Craniorrhachischisis ; and D, A 

 Second Anencephalic Monster, complete Craniorrhachischisis " {Anat. Rec., vol. 

 xvi, April 1919) ; Donaldson, " The Relative Volumes of the Cortex and Medulla 

 of the Adrenal Gland in the Albino Rat" (Amer. Jour. Anat., vol. xxv, May 

 1 9 1 9) ; Flather, "The Blood-supply of the Areas of Langerhans, a Comparative 

 Study from the Pancreas of Vertebrates (Preliminary Paper) " {Anal. Rec, vol. xvi, 

 April 1919); Hanson, "The Coracoid of Sus scro/a" {ibid,, May 1919); Hay, 

 "Descriptions of some Mammalian and Fish Remains from Florida of probably 

 Pleistocene Age " {Proc. United States Nat. Mus., vol. lvi, 1919) ; Hunt, " Vascu- 

 lar Abnormalities in a Domestic Cat {Felis domestica) " {Anat. Rec, vol. xvi, April 

 1919) ; Jackson, " The Postnatal Development of the Suprarenal Gland, and the 

 Effects of Inanition upon its Growth and Structure in the Albino Rat " {Amer. 

 Jour. Anat., vol. xxv, May 1919) ; Johnson, "The Development of the Lobule of 

 the Pig's Liver " {ibid.) ; Jordan, " Studies on Striped Muscle Structure : IV, Inter- 

 calated Discs in Voluntary Striped Muscle" {Anat. Rec, vol. xvi, 1919) ; 

 Loder, " Notes on the Beavers at Leonardslee " {Proc Zool. Soc, Pts. Ill and IV, 

 March 1919); Marui, "The Effect of Overactivity on the Morphological Structure 

 of the Synapse {Jour. Comp. Neur., vol. xx, April 1919); Meyer, "Uterine, 

 Tubal, and Ovarian Lysis, and Resorption of Conceptuses " {Biol. Bull., vol. 

 xxxvi, April 1919), and " On the Occurrence and Identity of the Plasma Cells of 

 Hofbauer" {Jour. Morph., vol. xxxii, June 1919) ; Wilder, " An Anomaly in the 



