44 SVEN LOVEN, ON THE ECHINOIDEA DESCRIBED BY LINX.EUS. 



in the preface, and with the Echiui and Asteriifi concludes 

 the Museum RegincTe. In the middle of July 1764 the last 

 sheet of it was in type^), and the oOth of that month is the 

 date of its Latin preface. 



Thiis appeared, at last, »as a prodromus , the work to 

 Avhich LiNX.EUS had long looked forward as towards a com- 

 mentarv on the Insecta and Vermes of the Systema, sfivins' 

 the full descriptions nccessary for a true conceptiou of a great 

 uumber of their then known species. Out of the 586 species 

 of exotic Insecta in the S. N. ed. 10, 1758, it contained 373, 

 with 87 additional species; of its 703 Testacea, 431, and of 

 the 29 Echinoderms, 24 species. Though in reality the prior 

 work it had, from accidental circumstances, become the låter 

 publication, and when its time arrived was still denied the 

 final revision. It was sent forth with some haste, and not 

 without some words implying an apology. 



A short prodrome to the second unpublished volume of 

 the Museum Adolphi Frederici Regis was appended, giving 

 a selection of its most remarkable specimens. The publisher 

 of both works was Laur. Salvius in Stockholm. 



From the autobiography of Linn^us we learn that po- 

 steriorly to the publication of the M. L. U. he was twice 

 summoned to Drottninodiolm : in the summer of 1766 »to ar- 

 range for the last time the Queen's Cabinet , and in June 

 1770 »to put in order the new acquisitions»-). Perhaps these 

 Royal summons were conferred mainly for the sake of appea- 

 rance; they seem to have led to very little scientific result. 

 The time of the former visit eoincides with the preparing for 

 the press of the second part of the first volume of the S. Js. 

 ed. 12, ccniprising the Evertebrates; the latter visit perhaps 

 was connected with the intended new edition of the zoolojjical 

 part of that work, concerning which he wrote to his friend 

 Bäck some years afterwards that he had the whole of it readv, 

 except the second class, the hirds^). 



LiNNvEus died on the tenth of January 1778. In the 

 ensuing summer the Museum of the late King xA.dolpiius Fre- 

 deric, deceased in 1771, was removed from Uhiksdal to Drott- 



') L. to BÄCK, 'V- 64. 



») Egeuh. Ant. }).'t>2, 68. L. to BÄCK. '% 70. L. to TiLAS. "/j 70. 



') L. to BÄCK, ' (1 75. Ahrling 1. c. 457. 



