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The Chevert was constructed between 1850 and 1863, and prior to the expedition, it been a transport vessel used for colonial advancement under the rule of both the English and French within Pacific and Indian Ocean colonies. The Chevert was bought by Sir William Macleay in early 1875 for £3000. There are conflicting accounts of the total amount of crew members who were present during the expedition, with certain sources there were 30 members, and others claiming 31. The scientific personnel on board were Sir William Macleay, John Brazier, William Petterd and Edward Spalding, Thomas Reedy, and William James. In a journal article titled "Notes on the Zoological Collections made in Torres Straits and New Guinea during the cruise of the Chevert", that was composed five months after Macleay initially embarked upon the expedition, Macleay detailed scientific observations that he believed were notable. In this publication, Macleay notes that the majority of the mammals that he encountered in New Guinea, with minimal anomalies, were marsupials, he outlines similarities between avifauna in New Guinea and in Australia, discusses the abundance of reptilia in New Guinea and the lack thereof in the Torres Strait, and describes his marine mollusca collections. Upon the return of the Chevert, critical comments regarding the expedition were promulgated in newspapers due to its short duration, despite an absence of communication regarding the length of the voyage. Further, condemnation was directed as Macleay, as the perception of New Guinea as a suitable colonial endeavour, which was a popular contention at the time, was a notion that he did not engage with. However, contemporary opinions that consider the expedition a scientific success exist. The Chevert initially travelled up the east coast of Australia, visiting various islands. On June 28, 1875, the Chevert reached New Guinea, and in the months of July and August, it encountered the Torres Strait. The Chevert then returned to New Guinea, and eventually to Australia on 8 September. Following the termination of the expedition in 1875, medical doctor William James pursued a follow up expedition, returning to New Guinea and the Torres Strait for purposes of further specimen collection. William James was killed by Indigenous peoples while pursuing his expedition. In the twenty first century, it has been suggested by terrestrial ecologist Graham R. Fulton that the Chevert Expedition is relevant in preventing the extinction of animals, as being familiar with past behaviours and localities of certain species may assist in comparative cross-checking.

Preparations
Prior to the expedition, Macleay was seeking ships for his expedition with Captain Edwards, and at Morts Dock on 22 February 1875, they encountered the Chevert, which was described to be in great condition. After the surveyor who was appointed to examine the boat provided positive feedback, Macleay bought it in early 1875 for £3000. The boat was constructed between 1850 to 1863 and had historically been a transport vessel used for colonial advancement under the rule of both the English and French within the Pacific and Indian Ocean. Following the purchase of the Chevert, the barque was adjusted and rectified to suit Macleay’s unique expeditionary requirements. In further preparation, guns and additional apparatus were organised, personnel were assigned, food was stocked, and units of sample storage were assembled, as was a steam launch. Further, a picnic was organised by the Linnean Society of New South Wales in the weeks preceding the expedition. In addition to the attendance of notable political figures and members of the academia of Sydney such as the Premier, Hon. Mr. John Robertson; the Attorney General, Hon. William Dalley, Professor and Charles Badham of The University of Sydney, the Consul of France, Mons. Eugène Simon, Lieutenant Henri Villemot, and Commandant of the Cher, were also present. Dr. Badham presented a speech to the attendees, in which he praises France for its historical assistance in advancing the “civilisation of nations.”  Mons. Simon also presented a speech in which he commended Macleay for his scientific endeavour, correlating scientific discovery and knowledge to national progression. Additionally, he communicated his perception of the importance of the expedition in defining Australia’s international scientific status.

Scientific Personnel
Sir William John Macleay (1820-1891): Macleay was the lead member of the Chevert Expedition and his various professions included: naturalist, entomologist, pastoralist, scientist and politician. Macleay was involved in founding the Entomological Society of New South Wales in 1862, and he was the first president of the Linnean Society of New South Wales, which was established in 1874. Following the expedition, in 1875, Macleay published "Notes on the Zoological Collections made in Torres Straits and New Guinea during the cruise of the Chevert", in which revealed scientific notes that he had taken on the expedition.

John William Brazier (1842-1930): Brazier was a conchologist by profession, and on the Chevert expedition, his assigned role was zoological collecting.

William Frederick Petterd (1849-1910): Petterd was a scientist and boot importer by profession, and on the Chevert expedition, his assigned role was zoological collecting.

William Hughes James (1852 - 1876): James was an American medical doctor and naturalist. On the expedition, James acted as a surgeon and a collector/taxidermist.

Thomas Reedy (1842 - 1929): Reedy worked as a gardener, and during the expedition, his designated role was the collection of flora.

Edward Spalding: Spalding worked as an entomologist and taxidermist, and on the expedition, he was a zoological collector.

Journey
The Chevert departed from Port Jackson on May 18, 1875. The expedition initially made stops at Cape York, the Palm Islands and Cape Grenville, Brookes Island and the north-west of the North Barnard Isles, and it was in the latter, that two samples of the Ptiloris species were collected. At Fitzroy Island and Palm Island, the terrain was dominated by boscage which, at Fitzroy Island, hindered specimen collection. The Chevert then continued, reaching the coral encircled sand-bank, which was labelled the “Low Wooded Isle”, which was then followed by Turtle Reef and Number 4 Howick Group. The topography near Flinders Island, which was the next location, was “rough and rocky.” On 12 June, 1875, the Chevert reached Cape Grenville on the Cape York Peninsula, and due to poor weather conditions, specimen collection was not very successful. However, specimen collection did eventually ensue, with scientific personnel and native populations pursuing sample collecting at Cape Grenville and other locations within its vicinity. Cape Grenville and the surrounding terrain was arid, with the distribution and variants of vegetation on the lower and higher ranges exhibiting differences.

On June 18, 1875, the barque was moored at Mud Bay, where it remained until June 26, 1875, and during its anchorage at Mud Bay, specimen collection abated temporarily. Following this period, the Chevert headed north to Warrior Island, and then departed Somerset for New Guinea. On July 3, the Chevert moored one and half miles from the mouth of the Katow (Binaturi) River, where it remained for 14 days. Specimen collection was limited to the shore as the crew were unable to advance inland. When anchored in the within close proximity to the Katow River, the personnel were approached by two men, one of whom was from the village in which they resided, whose name was Maino, and the other, from a neighbouring village to the west, whose name was Owta. The men offered their help and welcomed the personnel to their village, which contained seven houses that were positioned by the sea.

With Maino and Owta, the personnel navigated through a mangrove forest and eventually reached a forest described as “lofty and interminable.” During their progression through the river, they encountered a blockage that was caused by a tree that had collapsed. To counteract this issue, the crew returned to Warrior Island, and then progressed to Darney Island, where they were able to remove the material that was blocking their path. On August 13, the crew departed for Hall Sound in New Guinea, and then proceeded to Yule Island. Yule Island comprised a range of plantations belonging to the Indigenous inhabitants, and the nature varied in appearance from that which was observed in New Guinea. For example, the topography varied, as Yule Island did not contain smooth surfaces, but rather, elevated formations, and additionally, the forests were not as impenetrable as those encountered prior. The personnel returned to Somerset on 8 September 1875, and Macleay journeyed back to Sydney on a separate ship, named Singapore.

Scientific Observations
Following the expedition's dissolution, Macleay presented his zoological findings in a Linnean Society of New South Wales meeting. Further, in 1875, he published a paper in the journal, Proceedings of the Linnean Society New South Wales titled “Notes on the Zoological Collections made in Torres Straits and New Guinea during the cruise of the Chevert.” In this paper, Macleay discusses his observation that the majority of the mammals that he encountered in New Guinea, were marsupials. The outliers of this observation are listed as Sus Papuensis (New Guinea Pig), specific murdiae, and various species of frugivorous bats. Macleay comments that despite the deficit in his mammal collections, mammals were plentiful. He lists mammals that he witnessed, such as kangaroos, Cuscus, Belideus, Phalangers, and Parameles. Regarding avifauna, Macleay mentions the similarities between New Guinea and Australia. He mentions the Bee-eater Meropsornatus and the Torres Strait pigeons, noting that both travel from New Guinea to Australia during the summer months. Macleay also writes about his collection of three samples of a bird which had not been located in any other location prior, named the Pilorhis Victoriae, which was collected by Mr. Masters at the North Barnard Isles. Regarding reptilia, Macleay observes that they were more abundant in New Guinea than in the Torres Strait. At Katow, collections were made consisting of snakes, lizards, tree frogs, and alligators. Macleay collected approximately 800 fish, which he sourced primarily from the northern Australian coast. While in the Torres Strait, Macleay observed that sharks and rays were the most heavily populated type of fish, and he was able to collect numerous samples of both organisms, comprising variants in species. Macleay notes that he encountered the colourful Labridae; and he observed Percoid fishes, including Pristopomatidae, and Squamipennes, which he detected in large quantities. Additionally, Macleay observed a fish belonging to the genus Naseus, and he also encountered the fish Echineis Remora, and a species of Mugil within the vicinity of Cape York. Regarding marine mollusca, Macleay comments that the collections were abundant, and that they were made on the north-east coast of Australia and the Torres Straits. He states however, that the most successful specimen collection occurred at Darnley Island. Macleay notes that in New Guinea, he was able to include variants of new species of Helix within his collections.

Aftermath
Following the termination of the expedition in 1875, medical doctor William James pursued a follow up expedition, returning to New Guinea and the Torres Strait for purposes of further specimen collection. Members included William Petterd, Felix Knight, Lawrence Hargrave and Kendall Broadbent. The personnel, before specimen collection commenced, dispersed gradually and pursued specimen collection in different locations. Fulton attributes their split to challenging weather conditions and disease. On the Chevert Expedition, specimen collection in New Guinea was limited to Katow, Yule Island and Hall Sound. However, in the follow up expedition, specimen collection was extended to Port Moresby, where specimen collection occurred from October 29, 1875, to January 26, 1876. At Port Moresby, Petterd and Broadbent made the most progress in collecting. James and Knight pursued sample collecting at Port Moresby until November 4, 1875. They then proceeded to collect at Yule Island and Hall Sound until August 23, 1875. Referencing an anonymous source from 1875, terrestrial ecologist Graham R. Fulton states that the follow-up expedition was self-funded by the personnel, and that they travelled in a boat, named Ellangowan. On 23 August 1876, while near Yule Island, James was speared by New Guinean natives, and as a result, died.

Following the end of the voyage of the Chevert, public reaction towards Macleay was generally negative. The public expected Macleay to achieve colonial advances in New Guinea and collect material goods, such as gold, despite the fact that Macleay had never proclaimed that he intended to do so. In January 1876, Macleay put the Chevert up for sale, and it eventually operated under Captain Livingston, moving coal between Newcastle and Melbourne. In October 1876, it went on sale again in the private industry. In June 1877, it reverted to its prior role of transporting coal around Newcastle, as well as areas such as Wallaroo in South Australia. After being on sale in March 1879, the Chevert was sold to Captain Stephenson, and was operated in the South Sea Island trade. The Chevert became a site of wreckage in January 1880 following a cyclone.