98 



of Mr. Spence, whose health became so much 

 impaired as to oblige him, about eleven years 

 ago, to quit Hull for the South of England : the 

 publication of the third volume did not take place 

 until the year 1825, nor that of the fourth and 

 last volume until the following year. Mr. Spence 

 has passed the last five years, with his family, on 

 the continent ; and, during that period, he has 

 communicated to his friend, Mr. Loudon, the 

 editor of the " Gardener's Magazine," and the 

 " Magazine of Natural History/' the following 

 interesting Essays, which are to be found in 

 those periodicals, viz. " Remarks on the Education 

 " and Amusements of the Lower Classes," dated 

 from "Brussels, Feb. 26, 1829;"* " Observa- 

 " tions relative to Dr. Carus's discovery of the 

 " Circulation of the Blood in Insects," dated 

 from "Dresden, August 28, 1829 ;"f "Re- 

 " marks on planting Trees and Shrubs in masses 

 " of one species/' dated from " Florence, Decem- 

 " ber 22, 1829 ;"J and " Notes on the Weather 

 at Florence, during the past Winter" also dated 

 from "Florence/April 2, 1830."|| Besides these 

 communications, Mr. Spence has made other 

 minor contributions to Mr. London's Magazines, 



* Card. Mag., vol.5, p. 125. 

 t Mag. Nat. Hist., vol. 1, p. 48. 

 f Card. Mag., vol. 6, p 408, 

 H M{f Nat. Hist., vol. 3, p. 374. 



