78 LINXEAX SOCIETY OF LOXDOX. 



Pearl (Raymond). The !Sex Ratio in the Domestic Fowl. (Pi-oc. 

 Aiucr. PhiL See. Ivi.) 8vo. 1917. Author. 



.Studies on lnhreeding. VII. Some further considerations 



regiirdiiig th»> iiieasureiueiit and numerical e.xpression of degrees 

 oF kinslii|). (Amer. Nat..li.) 4to. 1917. Author. 



Biology and War. (Journ. Wa.sli. Acad. Sci. viii.) 



4to. ISil.s. Author. 



Pearl (Raymond) ami Boring (Alice M.). Sex Studies. X. Tlie 



Corpus Luteuiu iu the Ovarv of the Domestic Fowl. (Ainer. 



Journ. Anat. '23.) ' 4to. lUlb. Authors. 



Pearson (Arthur Anselm). The Flora of AVimbledon Common. 



8vo. London, 1918. Author. 

 Phillips (Edwin Percy). Some notes on a collecting trip to 

 French Hoek. (S. .African Journ. Sci. 1919.) 



8vo. [CVf/>e Town, 1919]. Author. 



Porsild (Morten P.). On "Savssats": A Crowding of Arctic 



Animals at Holes in the Sea Ice. (Geogr. Kev. vi.) 4to. 1918. 



Author. 

 Punnett (Reginald Crundall). Mendelism. Fifth Edition. 



Svo. London, 1919. 

 Ray Society. FuhJications (continued). 



eiisovKS (J.) and Bullock-Weustek (G. R.;. The British Cliarophjta 



Vol. I. Nitellete. 

 LccAS (W. J.). A Mouograpii of the British Ortlioplera. 



Svo. 1920. 

 Rendle (Alfred Barton). See British Museum : Plants. Flora 



of Jamaica. 

 Reverdin (Louis). Etude Phytoplanctonique, experimentale, efc 

 descriptive des eaux du Lac de Geneve. (Arch. Sci. phys. 

 nat. i.) Svo. Geneve, Wli). R. Chodat. 



Roberts (^ Emmanuel). Native remedies used in snake hites, etc. 



8vo. Colombo, 1919. Author. 



Seward (Albert Charles). Fossil Plants. A Text-book for 



Students of Botany and Geology. Vol. IV. Ginkgoales, 



(^miferales, Gnetales. Svo. Camhridije, 1919. 



Shoolbred (W. A.). The Flora of Chepstow. Svo. London, 1920. 



Author. 



Sim (T. R.). F'lowering Trees and Shrubs for use in South 



Africa. Svo. Johaniieshurij ,^- Cape Town, 1919. Author. 



Small (James ). The Application of Botany in the Utilisation of 



Medicinal Plants. Svo. Zohc/ou, 1919. Author. 



The Origin and Development of the Compositae. (New 



Phytologist Reprint, No. 11.) Svo. London, 1919. Author. 

 Smith (Annie Lorrain). A Monograph of the Britisli Lichens. 

 A Descriptive Catalogue of the species iu the Department of 

 Botany, British Museum. Part I. (Second Edition). 



Svo. London, 1918. 



