OR HAY FEVER. 179 



3. — As a toxic agent, poisoning the tissues. 



4. — As a pseudo-parasite, penetrating the soft and sensitive parts. 



It should be added that these activities are here supposed to 

 operate upon the system while in an abnormal state. In a word, 

 behind all there is a Hay-Fever neurosis. As the nasal ducts are 

 the first to show suffering in Hay-Fever, and the malady thence 

 extends to all the respiratory organs, as well as other parts of the 

 system, I think it bodes good that in addition to the long-known 

 " Laryngological Association," the medical fraternity have effected 

 a new organisation under the name " Rhinological." This new 

 society is to concern itself with the ailments of the nose, hypothe- 

 cating the fact that diseases of the throat and larynx almost always 

 have their origin in the nasal region. 



EXPLANATION OF PLATE XV. 



Fig. 1. — Pollen of Rag-weed, Ainhrosia artemisicefolia , L. : size, 7^^ by 

 7^0 inch. 

 ,, 2. — Pollen of Golden-rod, Solidago squarrosa, Muhl. : end view, 

 showing spines of two lengths, and trilobate depressions ; size, 

 -^ by j^ inch. 



,, 3. — Pollen of <S. squarrosa : side view', showing one of the three 

 longitudinal grooves, which in Figure 2 are indicated by the 

 trilobes. 

 ,, 4. — A diagram of a group of pollens of S. squarrosa. Two are 

 side views, and six are end views. 

 The figures are necessarily diagrammatic. For Figures 1, 2, and 3, 

 I am indebted to Dr. Alfred C. Stokes. 



(From the Journal of the New York Microscopical Society.) 



Mr. Fred. Enock, of 11 Parolles Road, Upper Holloway, Lon- 

 don, has sent us a number of his very excellent Lithographic sketches 

 by which his slides are accompanied. We have also received from 

 him slides of vertical section through the cephalothorax and abdo- 

 men of the Garden Spider, Epeira diadema, showing the brain, heart, 

 liver, spinnerets, silk glands, and other internal organs ; Head of 

 Devil's Coach-Horse Beetle, Ocypus olens, mounted without pres- 

 sure, showing organs of the mouth in the natural form and colour; 

 the Bed Bug, Cimex lecfularius, showing internal and muscular 

 structure; and the beautiful Fairy Fly, Camptoptera papaveris, one 

 of the smallest winged insects, being only about one-fiftieth of 

 an inch long from head to tail. Mr. Knock's slides are the perfec- 

 tion of mounting. 



