The pine-apple industry is chiefly carried on at Wahiawa, where, at an 

 elevation of about 1,000 feet, a tract of country is irrigated and homesteaded 

 by Calif ornians; here 2,000 acres of pine -apples are grown, and the estimated 

 output in sight last year was 500,000 casts of canned pines, each containing 

 2 dozen tins, of an average weight of 2k lb. per tin. There are three other 

 canneries in the islands, one at Hilo, another at Kaiku, and a third at 

 Kealia (Kauai Island). Here the labour is all Japanese, under white super- 

 vision. 



The plants are grown in rows of different distances apart those for canning 

 usually 2 feet ; those for export in double rows with 2 feet on either side. 

 The land is ploughed before planting, and kept clean with the cultivator, and 

 the climate is so wet that no irrigation is required for their growth. 



The Director of the Experimental Station has had a number of shipments 

 of fresh pine-apples sent vid San Francisco to try the Eastern markets ; but 

 though the distance is not great, they ripen so rapidly that the profit is very 

 uncertain. Their worst disease, that probably has something to do with 

 their decay, is a fungus that attacks them at the base, known as Thielaviopsis 

 ethaceticus. Few insect pests are found upon the pine apple: Diaspis bromelice 

 is a common but not serious pest on the leaves, and Pseudococcus citri is a 

 mealy bug collecting round the base of the fruit. 



At the Bureau of Agriculture and Forestry I went over the collections 

 with Messrs. Craw and Kotinsky, particularly thecoccids, which are mounted 

 dry in glass tubes, and comprise a fine lot of specimens', among which are 

 many collected by Professor Koebele. Here, also, I attended a meeting of 

 the Entomological Society of Honolulu, and gave the members a short address 

 upon our work in Australia. 



Several davs were spent on the island of Molokai, with Mr. Van Dine 

 investigating the stock diseases there, particularly the blow-fly pest on sheep 

 which damaged the sheep by blowing the damp wool in the same manner as 

 they do in Australia. Van Dine has since written a bulletin on this pest, 

 which has been identified as Calliphora dux. Here we also found the 

 bot-flies very common, and the shoulders of the horses running in the 

 paddocks were covered with their eggs. 



The United States. San Francisco was reached on the 21st of August, and 

 1 immediately went round to the office of the State Board of Horticulture, 

 at the Ferry Buildings. Here I met Mr. Bremner, who was in charge ; I 

 explained my mission to him, that I had come to see all that they could show 

 me. 



So much has been said and written about their insectarium and parasite 

 breeding cages, that T had expected to see some large rooms, if not a piece of 

 land, fitted up with all modern appliances. Instead of this, the insectarium 

 is a small room, about 15 by 13 feet, adjoining the main office. About half 

 a dozen ordinary breeding cages of wood, glass, wire, and gauze contain scale 

 insects, ladybird beetles, and the celebrated codling moth apple parasite. 

 These latter were enclosed in a breeding cage in which were several stacks of 

 little bundles of laths so tied together that the liberated codling moth grubs, 

 received from the apple-growers in large quantities for food for the parasites, 

 could crawl in between the little laths and pupate, wh^re they were exposed 

 to the attacks of the large black ichneumon parasite (Calliephialtes messor). 

 There were a great number of these handsome black wasps crawling about 

 over the walls of the breeding cage ; now and then they turned thear attention to 

 codling moth pupae, and curved their ovipositor round and deposited their eggs 

 in the hapless grubs. Many of the enclosed parasites had been bred out from 



