Ill 



with the " Stomach of the Fresh-water Crayfish/'* and the " Stridu- 

 lating Organ of Palinurus "f hear nevertheless a direct relationship to 

 the work of Huxley's class room. These were followed by others on 

 the " Histology of Hydra fusca"l on the " Intestinal Spiral Valve in 

 the genus Raia,' and on " Some Applications of Osmic Acid to Micro- 

 scopic Purposes."! | In publishing the latter, Parker established for 

 himself a reputation as one of the first to apply the then prevailing 

 zoologists' methods to the preparation of microscopic sections of plant 

 tissues, and he will further be memorably associated with the progress 

 of vegetable histology as having been the first to discover and briefly 

 describe the existence of sieve-tubes in the marine alga Macrocystis. 9 ^ 



While in London Parker became Lecturer on Biology at Bedford 

 College and an Assistant Editor of the ' Journal of the Royal Micro- 

 scopical Society,' and he served as Examiner in Zoology and Botany at 

 the University of Aberdeen and as an Assistant Examiner in Physiology 

 to the Science and Art Department. 



In 1880 he was appointed Professor of Biology in the University of 

 Otago, Dunedin, New Zealand, which office he filled with great credit 

 to himself until the day of his death. Soon after his arrival at the 

 Antipodes, he described** a new Holothurian (Chirodota dunedinensis), in 

 promise, as it were, of the magnificent f aunistic work since performed by 

 some of those who afterwards became his colleagues in the task of 

 Australian and Novo-Zelandian exploration, and of which we could 

 have wished that Parker had given us more. His mind centred 

 in morphological inquiry, which he continued in full earnest. 

 Among his forty odd published monographs those dealing with the 

 " Anatomy and Development of Apteryx"ff and the "Cranial Osteology, 

 Classification, and Phylogeny of the Dinornithidse 'JJ will always be 

 prominent among biological achievements at the Antipodes; but there 

 remain others, such as his later monograph on the " Structure of the 

 Head in Palinurus " and that on the " Myology of the species 

 P. Edward sii (published in the Macleay Memorial Volume, in conjunc- 

 tion with a lady pupil), which link together his work at home 

 and in New Zealand in an interesting association revealing continuity 

 of ideas. 



As a teacher, writer, and lecturer Parker was always clear. Unlike 



* ' Journ. Anat. and Phys.,' vol. 11. 



f < Zool. Soc. Proc.,' 1878. 



J ' Roy. Soc. Proc.,' vol. 30, and ' Quart. Journ. Micr. Sci.,' vol. 20. 



< Zool. Soc. Trans.,' vol. 11. 



|| ' Roy. Micr. Soc. Journ.,' vol. 2. 



IT ' N. Z. Inst. Trans.,' vol. 14. 

 ** ' N. Z. Inst. Trans.,' vol. 13. 

 ft ' Phil. Trans./ 1892. 

 tt ' Zool. Soc. Trans.,' vol. 13. 

 ' N. Z. Inst. Trans.,' vol. 10. 



