297 



1817 

 Du Petit-Tiiouaks. a., Snr Ics effets de la gelee sur les 

 plaiites. Vcrncr Frai/rals, I'aris. 



1820 

 VoGEL, A., Ueber die Veraenderungen, die einige Stoffe 

 des orgaiiischeii Reielies beim Gefrieren erloiden. Cfil- 

 hert's Ann. d. Physik, ()4, 167. 



1829 

 Xeuffer, W., I'ntersuchmigen iiber die Temperatnr- 

 Verandei'uiigou der Vegetabilieii inid vcrsehiedeiie damit 

 in Beziehuiig steliende Gegenstande. Iiiaug. Diss., Tii- 

 bingen. 



1830 

 GoEPPERT, H.R., Ueber die AYarmeentwiclvelung in den 

 Pflanzen, deren Gefrieren, und die Schutzmittel gegen das- 

 selbe. 1-272. Breslau. 



1833 

 Herschel, J., Xotice of a Remarkable Deposition of Ice 

 round the Decaying Stems of Vegetables during Frost. 

 London-Ediuh. PhilosMag., 2, 110-111; (On p. 190 there 

 is a note by S. P. Pigaud on the same subject). 



1838 

 AuDoiis^, Influence du froid chez les insectes. Ann. Soc. 

 Entom. dc France, 7, Bull. 39, 



Among subjects which have been deliberately omitted, though they 

 concern rather directly our topic, we shall mention: cohl liardiuess in 

 plants, preservation of food by refrigeration (and, as such, cold injuri/ 

 to edible plants, fruit, etc.). plii/siological effect of cold on germination, 

 growth, morphogenesis, habitat, etc. (and. as such, snoic vegetation, 

 arctic vegetation, etc.), properties of phi/sical systems at low tempera- 

 tures (the properties of colloids, however, are included). These sub- 

 jects either have been investigated enough to constitute separate units, 

 or the accepted division of the sciences has assigned them to specialists 

 in other branches, or they have already been or are reviewed by com- 

 petent authors whose work it would be useless to duplicate. 



When the title of a paper does not indicate what relation its content 

 bears to low temperature, we added a note in parentheses to that effect. 



